Keywords

• "*"
  • • Macro with many parameters to say hello
• "+"
  • • Macro with many parameters to say hello
• %
  • • Numerical operations on integers
• &
  • • Rust ownership - borrow String
    • Borrow String when passing to a function
• &mut
  • • Struct method to modify fields
• &self
  • • Implement a method for a struct
• &str
  • • From and Into for String and &str
    • Rust function with parameter (&str)
• (
  • • Regex match numbers - capture using parentheses
• ()
  • • Rust tuple - fixed-sizes, mixed, ordered collection
    • The empty tuple is called the unit
• )
  • • Regex match numbers - capture using parentheses
• *
  • • Numerical operations on integers
• +
  • • Numerical operations on integers
• ++
  • • Increment integers - augmented assignment
• +=
  • • Increment integers - augmented assignment
• -
  • • Numerical operations on integers
• --
  • • Increment integers - augmented assignment
• --release
  • • Cargo build
• --test-threads
  • • Testing with temporary directory passed as an environment variable (test in a single thread RUST_TEST_THREADS)
• /
  • • Numerical operations on integers
• /* */
  • • Rust and comments
• //
  • • Rust and comments
• 500
  • • Rocket - catch panic in the route handle
• ::<>()
  • • Convert string to (integer) number - parse, turbofish
• :p
  • • Strings and memory allocation
• ?
  • • main returning Result - Set exit code
    • Error in internal function
• ?:
  • • Conditional (Ternary) operator
• _
  • • Destructuring tuple
• about
  • • Clap Show the description of the crates using the about command
• addr_of
  • • Compare memory address (pointer)
• alias
  • • Using a library with an alias
    • Read CSV remove (trim) whitespaces from around the values
    • Alias some fields in JSON (handle dash in JSON keys)
• all
  • • String is alphabetic or alphanumeric
    • Threads polling the substhreads
    • Iterator: all the elements
• ancestor
  • • directory ancestor (n level)
• ancestors
  • • directory ancestors (parent directories)
    • directory ancestor (n level)
• and_modify
  • • Hash of vectors in Rust
• append
  • • Mutable vector of numbers, append (push) values
    • Append vector of Strings (moving over elements)
    • Append to file
• approx_eq
  • • Approximately compare floating point numbers
• Arc
  • • Pass reference of read-only vector to thread
    • Pass reference of read-only vector to thread improved
• architecture
  • • Operating system information with os_info
• arg
  • • Clap Single long argument
• ArgPredicate
  • • Clap - set default value if other flag provided
    • Clap - set default value if other argument provided
• args
  • • Command line arguments - args
    • Command line arguments - print all args
    • Default path - return PathBuf
    • Run external program combining parameters
• arms
  • • Conditional: else - if
• as
  • • Using a library with an alias
    • Divide integers and get float
    • Square root (sqrt)
• as_i64
  • • Read Simple JSON file manually
    • Read YAML file
• as_millis
  • • Measure elapsed time
• as_object
  • • Read Simple JSON file manually
• as_ptr
  • • Strings and memory allocation
    • Memory allocation of vector of numbers
• as_secs
  • • Measure elapsed time
• as_str
  • • Read Simple JSON file manually
    • Read YAML file
• assert_eq
  • • Test a function in a crate
• assign
  • • Liquid assign to variable in template
• async
  • • http-client async with reqwest
    • Download many URLs in parallel (async)
• async_trait
  • • Rocket - Request guard - FromRequest
• attr
  • • Parse HTML
• AUTOINCREMENT
  • • SQLite with AUTOINCREMENT
• basename
  • • basename (file_name)
• bind
  • • SQLite SELECT with named placeholder - bind variables
    • SQLite INSERT with placeholder
• bind_iter
  • • SQLite SELECT with placeholder
• bitor
  • • Union and bitor
• blocking
  • • Simple blocking http client with reqwest
• Box
  • • Demo error handling with Result and question mark
    • main returning Result - Set exit code
    • Error in internal function
    • Linked list using struct and Box
• break
  • • Rust: loop with break
    • break returns value from loop
    • Create a simple iterator to count boundless
• BufRead
  • • Rust - read file line-by-line
• BufReader
  • • Rust - read file line-by-line
• build
  • • Cargo build
    • Liquid Hello World
• button
  • • eGUI counter with label and button
• canonicalize
  • • Relative and absolute path
    • List content of a directory - listdir
• capacity
  • • Capacity of string
    • Strings and memory allocation
    • Remove the last element using pop, reduce capacity
    • Stack and the capacity of a vector
    • Vector length and capacity
    • Queue
• capitalize
  • • Liquid filters on strings: upcase, downcase, capitalize
• capture
  • • Liquid layout (include and capture)
• captures
  • • Regex match exact text
    • Regex match numbers - capture using parentheses
• Captures
  • • Regex capture all the numbers - multiple match
    • Regex
• captures_iter
  • • Regex capture all the numbers - multiple match
• cargo
  • • Hello World with Cargo
• CARGO_PKG_VERSION
  • • Take version number from Cargo.toml
• carrying_add
  • • Handle overflow and underflow - carrying
• case
  • • match
    • Liquid flow control: case/when
• catch
  • • Rocket - catch panic in the route handle
• catchers
  • • Rocket - catch panic in the route handle
• cd
  • • Change directory
• CentralPanel
  • • eGUI Window
• channel
  • • Threads with messages
    • Counter with message passing
• chars
  • • Rust - string characters
    • Iterate over the characters of a string
    • Rust - reverse string
    • String is alphabetic or alphanumeric
    • Solution: count digits in file
    • Count digits using functions
• chdir
  • • Change directory
• checked_add
  • • Handle overflow and underflow - checked
• checked_pow
  • • Exponent protecting against overflow - checked_pow, saturating_pow
• chrono
  • • Chrono now
    • Parse string to datetime
    • JSON serialize examples
• CI
  • • Continuous Integration
• clap_complete
  • • Clap complete enum - name of shell
• CLI
  • • Clap example for CLI
• clicked
  • • eGUI counter with label and button
• clone
  • • Concatenation String with String (clone)
    • Convert the PathBuf to String to compare
    • Rust clone a String
    • Two threads sending messages
    • Pass reference of read-only vector to thread
    • Pass reference of read-only vector to thread improved
• Clone
  • • Filter vector of structs (cloning)
• cloned
  • • filter numbers
    • filter string
    • Filter vector of structs (cloning)
• cmp
  • • Compare integers
    • Compare strings
    • Longest or shortest string in a vector
    • Error handling on the command line
• collect
  • • Rust - reverse string
    • Join vector of integers
    • Change vector using map
    • filter numbers
    • filter string
    • Split string create hash
    • Create hash from key-value pairs after split
• commafy
  • • thousands crate for struct with Display (commafy)
• command
  • • Clap Show the description of the crates using the about command
• Command
  • • Run external programs
• concat
  • • concat
• config.toml
  • • Testing with temporary directory passed as an environment variable (test in a single thread RUST_TEST_THREADS)
• const
  • • Rust constants
    • Constant shadowing
• consts
  • • Using the Standard library
• contains
  • • Is one string in another string - contains?
    • Check if hash contains key (key exists)
    • Basic Set operations in Rust
• contains_key
  • • Check if hash contains key (key exists)
    • Hash of vectors in Rust
• content
  • • Rocket - Hello World returning static RawHtml
    • CREATE and SELECT in Memory
• Context
  • • Tera Hello World
• context
  • • Rocket - Echo using POST
• CONTROL
  • • Ratatui - handle keyboard events
• copied
  • • Accessing values
• count
  • • Count number of elements of an iterator
• coverage
  • • Test coverage report with tarpaulin
• create
  • • Rust - write to file
    • Rust - counter
    • CREATE and SELECT in Memory
• CREATE
  • • SurrealDB in-memory with SQL demo in Rust - CREATE (INSERT), SELECT, UPDATE, DELETE
    • SurrealDB - CREATE, SELECT, DELETE
• create_dir
  • • Makedir
• create_dir_all
  • • Makedirs
• CSS
  • • Parse HTML
• csv
  • • Parse in-memory CSV string into StringRecords and structs
    • Read CSV file as a vector of StringRecords
    • Read CSV file into hashes
    • Read CSV file as structs
• current
  • • Show that threads work in parallel
• current_dir
  • • Current working directory
    • Convert the PathBuf to String to compare
    • Run external command in another directory
• current_exe
  • • Get path to current executable
• cwd
  • • Current working directory
• Date
  • • Handle time (using the time crate)
• DateTime
  • • Chrono now
• DATETIME
  • • SurrealDB - Datetime with Chrono
• Datetime
  • • SurrealDB Datetime
• Db
  • • CREATE and SELECT in Memory
• dbg
  • • Debugging print
    • Rust and print
• dead_code
  • • Array of structs
    • Mapping structs based on more than one key
    • Enumeration with non-exhaustive patterns
    • Enumeration colors - functions and String
    • Enumerate without PartialEq using match
• Debug
  • • Array of structs
    • Debug struct - implement Debug
    • Derive Debug for struct
    • Mapping structs based on more than one key
    • Structs as keys of a HashMap
    • Enumeration colors - with method
    • Debug struct (Point)
• debug
  • • Rocket - Logging to the console
• Default
  • • Default values
• default
  • • Read JSON handle missing fields - set defaults
• default_value
  • • Clap accepting string, number, bool - default values
• default_value_if
  • • Clap - set default value if other flag provided
    • Clap - set default value if other argument provided
• default_value_t
  • • Clap accepting string, number, bool - default values
• DefaultTerminal
  • • Ratatui - Hello World
• DEFINE
  • • SurrealDB in-memory with SQL demo in Rust - CREATE (INSERT), SELECT, UPDATE, DELETE
    • SurrealDB - define field type - try to create entry with incorrect type (int, string)
• DELETE
  • • SurrealDB in-memory with SQL demo in Rust - CREATE (INSERT), SELECT, UPDATE, DELETE
    • SurrealDB - CREATE, SELECT, DELETE
• deny_unknown_fields
  • • Read JSON avoid extra fields - deny_unknown_fields
• dependencies
  • • Crate library and use local library
• derivable_impls
  • • Empty string and zero as default values
• derive
  • • Derive Debug for struct
    • Structs as keys of a HashMap
• description
  • • Clap Show the description of the crates using the about command
• Deserialize
  • • Read CSV remove (trim) whitespaces from around the values
    • Read Simple JSON file into a struct
    • Serialize struct and Deserialize JSON
• difference
  • • Difference
• dirname
  • • parent directory
• Display
  • • Print struct - implement Display
    • Print struct (Point)
• downcase
  • • Liquid filters on strings: upcase, downcase, capitalize
• Drop
  • • Drop - destructor
• drop
  • • Drop - destructor
    • Counter with message passing
• Duration
  • • Duration
• dyn
  • • Demo error handling with Result and question mark
    • main returning Result - Set exit code
    • Error in internal function
• elapsed
  • • Measure elapsed time
• else
  • • Conditional: if - else
    • Liquid flow control: if - else
• else if
  • • Conditional: else - if
• elseif
  • • Conditional: else - if
• elsif
  • • Conditional: else - if
    • Liquid flow control: else if written as elsif
• endcase
  • • Liquid flow control: case/when
• endfor
  • • Liquid for loop passing a vector or an array
    • Liquid for loop with if conditions
• endif
  • • Liquid flow control: if - else
    • Liquid for loop with if conditions
• ends_with
  • • Rust - string ends with
• entry
  • • Rust hash update value
    • Rust update values in a hash - count words
• enum
  • • Enumeration with non-exhaustive patterns
    • Enumeration colors - functions and String
    • Enumeration colors - with method
    • Enumerate without PartialEq using match
    • Struct using enum
    • Clap: one of a fixed list of values (enumerated)
• enumerate
  • • Rust array iterate indices and elements with enumerate
    • Iterate over both index and value of a vector (enumerate)
    • Rust - read file line-by-line with row number (enumerate)
    • Solution: count digits in file
    • Count digits using functions
• env
  • • Testing with temporary directory passed as an environment variable (test in a single thread RUST_TEST_THREADS)
    • Clap and environment variables
• epoch
  • • Rocket - Generated RawHtml page
• eprint
  • • Rust and print
• eprintln
  • • Rust and print
    • Command line program with a single file parameter
• Eq
  • • Compare structs for Equality
    • Structs as keys of a HashMap
• eq
  • • Compare structs for Equality - manual implementation
    • Manually implement ordering
• Equal
  • • Compare integers
    • Compare strings
• Equals
  • • Clap - set default value if other flag provided
• Err
  • • Demo error handling with Result
    • Error handling in file operations
    • Return error on failure
    • Factorial functions returning Result
• Error
  • • main returning Result - Set exit code
    • Error in internal function
• error
  • • Rocket - Logging to the console
• ESC
  • • Ratatui - handle keyboard events
• Event
  • • Ratatui - Hello World
• execute
  • • SQLite in memory example with INSERT and SELECT
• exists
  • • Check if hash contains key (key exists)
• exit
  • • Command line program with a single file parameter
    • Exit
• ExitStatus
  • • Run external programs
• expect
  • • Convert string to (integer) number - parse, turbofish
    • Rust - read input from STDIN
    • Error handling in file operations
• expect_identifier
  • • Liquid create your own tag with a single parameter
• expect_literal
  • • Liquid create your own tag accepting two numbers
• expect_next
  • • Liquid create your own tag with a single parameter
• expect_nothing
  • • Liquid create your own tag without parameters
• expr
  • • Macro with parameter to say hello
    • Macro with many parameters to say hello
• extend
  • • Extend vectors of numbers (combining two vectors)
    • Extend vector of Strings (combining two vectors)
    • Memory allocation of vector of numbers
    • Merge HashMaps (extend)
• extension
  • • get file extension
• f32
  • • Convert string to float
    • Using the Standard library
    • Divide integers and get float
• f64
  • • Using the Standard library
    • Square root (sqrt)
    • rounding float
• false
  • • Rust: boolean values true and false
• FIELD
  • • SurrealDB - define field type - try to create entry with incorrect type (int, string)
• File
  • • Rust - write to file
    • Rust - counter
• file_name
  • • basename (file_name)
    • List content of a directory - listdir
• FileServer
  • • Rocket - Serving static files
• filter
  • • filter numbers
    • filter string
    • Filter vector of structs (cloning)
    • Combine filter and map into filter_map
• filter_map
  • • Combine filter and map into filter_map
• find
  • • Is one string in another string - contains?
• first
  • • Liquid filters: first, last
• flatten
  • • Parse in-memory CSV string into StringRecords and structs
• fn
  • • Hello World
    • Rust main function
    • Rust hello world function
• for
  • • for loop in Rust
    • Iterate over elements of vector using for-loop
    • Iterate over both index and value of a vector (enumerate)
    • Liquid for loop passing a vector or an array
    • Liquid for loop with if conditions
    • Iterate over vector of numbers
• FOREIGN KEY
  • • SQLite - Groups and Owners (with FOREIGN KEY)
• Form
  • • Rocket - Echo using POST
• format
  • • Rust and print
    • Concatenate strings using format!
    • String formatting
• Formatter
  • • Print struct - implement Display
• from
  • • Really mutable string
    • Create a String
    • Converting between types: The From and Into traits
    • From and Into for String and &str
    • Implementing the From trait for 2D and 3D point structs
    • Create immutable hash with data
    • Check if hash contains key (key exists)
    • Get value from hash
    • Iterate over keys of a hash
• From
  • • Implementing the From trait for 2D and 3D point structs
• from_calendar_date
  • • Handle time (using the time crate)
• from_iter
  • • Create vector of strings from array of str using from_iter
    • Create hash from vector of tuple pairs
• from_reader
  • • Parse in-memory CSV string into StringRecords and structs
    • Read JSON file using from_reader manually
    • Read JSON file using from_reader to a struct
    • Read YAML file
• from_str
  • • Read Simple JSON file manually
• from_string
  • • Serialize struct and Deserialize JSON
• from_utf8
  • • Run external programs
• FromForm
  • • Rocket - Echo using POST
• FromRequest
  • • Rocket - Request guard - FromRequest
    • Rocket - Blog using request guard - FromRequest
    • Skip route using a guard
• get
  • • Vector with optional values - None or out of range?
    • Vector with optional values
    • Get value from hash
    • Accessing values
    • Simple blocking http client with reqwest
• GET
  • • Rocket - Echo using GET
• get_autocommit
  • • SQLite get_autocommit function
• get_mut
  • • serde manipulate json (change, add)
• GitHub
  • • Continuous Integration
• Greater
  • • Compare integers
    • Compare strings
• Handlebars
  • • Quick start - unregistered template
• Hash
  • • Structs as keys of a HashMap
• HashMap
  • • Create empty HashMap, insert key-value pairs
    • Create immutable hash with data
    • Mapping structs based on more than one key
    • Create hash from vector of tuple pairs
    • Merge two HashMaps adding the values
    • Merge two HashMaps adding the values implemented as a function
    • Merge two HashMaps adding the values in a function
    • Read CSV file into hashes
    • Liquid HashMap
    • Serialize and deserialize HashMap to JSON in Rust
    • Macro to create a HashMap to be a counter
    • Add method to HashMap that sums the values
• HashSet
  • • Basic Set operations in Rust
• heading
  • • eGUI heading
• Html
  • • Parse HTML
• i32
  • • Convert string to (integer) number - parse, turbofish
    • Rust numerical types
    • Rust type mismatch in numerical operation
    • Rust function return value (integer i32)
• i64
  • • Rust numerical types
    • Rust type mismatch in numerical operation
• i8
  • • Rust numerical types
• if
  • • Conditional: if
    • Conditional: if - else
    • Liquid flow control: if - else
    • Liquid for loop with if conditions
• if else
  • • Conditional (Ternary) operator
• impl
  • • Implement a method for a struct
    • Struct method to modify fields
    • Struct composition: Circle
    • Print struct - implement Display
    • Debug struct - implement Debug
    • Default values
    • Enumeration colors - with method
    • Enumeration colors - with constructor
• in
  • • Is one string in another string - contains?
    • Iterate over elements of vector using for-loop
• include
  • • Liquid include
    • Liquid include header and footer
    • Liquid layout (include and capture)
• include_str
  • • Liquid Hello World embed template file
• index
  • • Is one string in another string - contains?
• inf
  • • Infinite floating point numbers
• info
  • • Rocket - Logging to the console
• inner_html
  • • Parse HTML
• insert
  • • Insert element in vector
    • Create empty HashMap, insert key-value pairs
    • Split string create hash
    • Create hash from key-value pairs after split
    • Hash of vectors in Rust
    • Basic Set operations in Rust
• INSERT
  • • SQLite in memory example with INSERT and SELECT
• Instant
  • • Measure elapsed time
    • Instant sleep Duration
• integer_sqrt
  • • Square root of integer numbers
• into
  • • Converting between types: The From and Into traits
    • From and Into for String and &str
    • Implementing the From trait for 2D and 3D point structs
• into_iter
  • • Convert vector of chars to String
    • Change vector using map
    • Iterator: all the elements
• into_os_string
  • • Convert the PathBuf to String to compare
• into_string
  • • Convert the PathBuf to String to compare
• is_alphabetic
  • • String is alphabetic or alphanumeric
• is_alphanumeric
  • • String is alphabetic or alphanumeric
• is_finished
  • • Threads polling the substhreads
• is_none
  • • Vector with optional values - None or out of range?
• is_some
  • • Vector with optional values - None or out of range?
• IsPresent
  • • Clap - set default value if other argument provided
• isqrt
  • • Square root of integer numbers
• Item
  • • Create a simple iterator to count up to a number
• iter
  • • Rust array iterate indices and elements with enumerate
    • Convert vector of chars to String
    • Join vector of integers
    • Maximum value of a vector
    • filter numbers
    • filter string
    • Iterate over both index and value of a vector (enumerate)
    • Iterate over key-value pairs in a Hash
    • Count digits using functions
    • Threads polling the substhreads
    • Alternatively, we could create an iterator using the iter method.
    • Iterator: all the elements
• iter_into
  • • filter numbers iter into
• iter_mut
  • • Mutable iterator
• Iterator
  • • Create a simple iterator to count up to a number
• join
  • • Join elements of vector into a string
    • Join vector of integers
    • join pathes
    • Simple thread with join
    • Show that threads work in parallel
    • Handle panic! in threads
• json
  • • Quick start - unregistered template
    • Serialize and deserialize HashMap to JSON in Rust
    • JSON serialize examples
    • serde manipulate json (change, add)
• JSON
  • • JSON serialize examples
• kernel_version
  • • sysinfo - Which Operating System are we running on?
• KeyCode
  • • Ratatui - Hello World
• KeyEventKind
  • • Ratatui - Hello World
    • Ratatui - handle keyboard events
• KeyModifiers
  • • Ratatui - handle keyboard events
• keys
  • • Create immutable hash with data
    • Iterate over keys of a hash
    • Iterate over key-value pairs in a Hash
    • Remove element from hash
• kv-mem
  • • SurrealDB in-memory database in Rust
• kv-rocksdb
  • • SurrealDB with RocksDB backend in Rust embedded client with local database storage
• label
  • • eGUI label
    • eGUI counter with label and button
• last
  • • Accessing the last element of a vector
    • Liquid filters: first, last
• last_insert_rowid
  • • SQLite with AUTOINCREMENT
• len
  • • Rust array of numbers, length of array
    • Length of string
    • Capacity of string
    • Strings and memory allocation
    • Fixed vector of numbers
    • Remove the last element using pop, reduce capacity
    • Stack and the capacity of a vector
    • Accessing the last element of a vector
    • Vector length and capacity
    • Queue
    • Create empty HashMap, insert key-value pairs
    • Show size of file
    • du - disk usage
    • Liquid: length of string, size of vector
• length
  • • Use Tera filters (length)
• Less
  • • Compare integers
    • Compare strings
• let
  • • Rust - Hello Foo
    • Variables are immutable
    • Number in a mutable variable
    • Literal strings in variables are immutable
    • Literal string in a mutable variable can be replaced
    • Redeclare immutable variable - Shadowing
    • Variable shadowing
• lib
  • • Testing a library crate
• limit
  • • Liquid for loop: limit, offset, reversed
• lines
  • • Split on newlines - use lines
    • Rust - read file line-by-line
    • Rust - read file line-by-line with row number (enumerate)
• Lines
  • • Split on newlines - use lines
• literal
  • • Macro with literal
• lock
  • • Counter with threads (shared variable) using Mutex
    • Counter with threads (local counting)
• log
  • • Simple Logger new
    • Logging with log4rs
• log4rs
  • • Logging with log4rs
• long
  • • Clap Single long argument
• loop
  • • Rust: loop with break
    • break returns value from loop
• macro_rules
  • • Capacity of string
    • Strings and memory allocation
    • Hello World macro
    • Macro with parameter to say hello
    • Macro with many parameters to say hello
• main
  • • Hello World
    • Rust main function
• map
  • • Join vector of integers
    • Change vector using map
    • Combine filter and map into filter_map
    • replace map with par_iter
• match
  • • Demo None handling with Option
    • Demo error handling with Result
    • Avoid the comparison chain using match
    • match
    • Get language function returning Option
    • Maximum value of a vector
    • Enumerate without PartialEq using match
    • Error handling in file operations
    • Return error on failure
    • Handle panic! in threads
• max
  • • Maximum value of a vector
    • Longest or shortest string in a vector
• max_by
  • • Longest or shortest string in a vector
• Mem
  • • SurrealDB in-memory database in Rust
    • CREATE and SELECT in Memory
    • SurrealDB in-memory with SQL demo in Rust - CREATE (INSERT), SELECT, UPDATE, DELETE
• memory
  • • SQLite in memory example with INSERT and SELECT
• metadata
  • • du - disk usage
• min
  • • Longest or shortest string in a vector
• min_by
  • • Longest or shortest string in a vector
• minus
  • • Liquid filters on numbers: plus, minus
• mkdir
  • • Makedir
    • Makedirs
• mod
  • • Module defined in the main.rs file
    • Module in other file
• move
  • • Threads with messages
• mpsc
  • • Counter with message passing
• mut
  • • Number in a mutable variable
    • Literal string in a mutable variable can be replaced
    • Array of strings - access element by index
    • Make the Rust array mutable
    • Change tuple (mutable)
    • Create tuple with types, but without values
    • Change attributes of a mutable struct
    • Struct method to modify fields
    • Mutable vector of numbers, append (push) values
    • Mutable empty vector for numbers (push)
    • Create empty HashMap, insert key-value pairs
    • Make function argument mutable inside the function
    • Literal string in mutable variable
• Mutex
  • • Mutex - without threads
    • Lock with Mutex
    • Counter with threads (shared variable) using Mutex
    • Counter with threads (local counting)
    • map with threads with Mutex
• naive_utc
  • • Parse string to datetime
• NaN
  • • NaN - Not a Number
    • Infinite floating point numbers
• NativeOptions
  • • eGUI Window
• new
  • • new method with default values for struct
    • The new method has no special feature
    • Create empty HashMap, insert key-value pairs
    • Rust hash update value
• next
  • • directory ancestor (n level)
    • Iterator that restarts
    • Circular Iterator that restarts
    • Create a simple iterator to count up to a number
    • Iterate over files in current directory calling next
    • SQLite SELECT with placeholder
    • SQLite INSERT with placeholder
• nocapture
  • • Show STDOUT and STDERR during testing
• None
  • • Demo None handling with Option
    • Create Option
    • Rust - string characters
    • Vector with optional values
    • Skip route by returning None
• not
  • • Toggle
• now
  • • Measure elapsed time
    • Chrono now
• nth
  • • directory ancestor (n level)
• num_args
  • • Limit the number of values for a vector argument
• object
  • • Liquid Hello World
• offset
  • • Liquid for loop: limit, offset, reversed
• Ok
  • • Demo error handling with Result
    • Error handling in file operations
    • Return error on failure
    • main returning Result - Set exit code
    • Error in internal function
    • Factorial functions returning Result
• open
  • • Rust - read content of a file as a string
    • Append to file
    • SQLite in memory example with INSERT and SELECT
• Option
  • • Demo None handling with Option
    • Create Option
    • Get language function returning Option
    • Vector with optional values
    • Liquid with Option in a struct
    • Read JSON with optional fields: Option or default value?
    • Skip route by returning None
• or_insert
  • • Rust hash update value
    • Rust update values in a hash - count words
    • Hash of vectors in Rust
    • Add items to a hash of vectors using a function
• Ord
  • • Compare structs for ordering (sorting) - Ord
• Ordering
  • • Compare integers
    • Compare strings
    • Error handling on the command line
• os_info
  • • Operating system information with os_info
• os_type
  • • Operating system information with os_info
• os_version
  • • sysinfo - Which Operating System are we running on?
• OsStr
  • • Clap - set default value if other flag provided
• Outcome
  • • Rocket - Request guard - FromRequest
• Outcome::Error
  • • Skip route using a guard
• Outcome::Forward
  • • Skip route using a guard
• Outcome::Success
  • • Skip route using a guard
• overflowing_add
  • • Handle overflow and underflow - overflowing
• panic
  • • Error handling in file operations
    • factorial function, runtime panic
• par_iter
  • • replace map with par_iter
• Paragraph
  • • Ratatui - Hello World
• parent
  • • parent directory
• parenthesis
  • • Rust tuple - fixed-sizes, mixed, ordered collection
• parse
  • • Convert string to (integer) number - parse, turbofish
    • Parse string to datetime
    • Liquid Hello World
    • Liquid Hello World embed template file
    • Parse HTML
• parse_document
  • • Parse HTML
• parse_file
  • • Liquid Hello World read template from file
• parse_from_str
  • • Parse string to datetime
• parse_str
  • • Parse string to Rust expression using syn
• partial_cmp
  • • Manually implement ordering
• PartialEq
  • • Compare structs for Equality
    • Compare structs for Equality - manual implementation
    • Compare structs for partial equality - PartialEq
    • Manually implement ordering
    • Structs as keys of a HashMap
    • Enumeration and manual comparision
    • Enumeration and order
    • Enumeration colors - functions and String
• PartialOrd
  • • Compare structs for ordering (sorting) - Ord
    • Compare structs for partial ordering (sorting) - PartialOrd
    • Manually implement ordering
    • Enumeration and order
• partials
  • • Liquid include
• Path
  • • Rust list content of directory
    • Return vector of Path or PathBuf
    • get file extension
• path
  • • Crate library and use local library
• PathBuf
  • • Default path - return PathBuf
    • Return vector of Path or PathBuf
• PI
  • • Using the Standard library
• plus
  • • Liquid filters on numbers: plus, minus
• poll
  • • Ratatui - a stopwatch or automatic counter - blocking vs. polling events
• pop
  • • Remove the last element using pop, reduce capacity
    • Stack and the capacity of a vector
• pop_front
  • • Queue
• POST
  • • Rocket - Echo using POST
• pow
  • • Exponent - power
• prepare
  • • SQLite SELECT with named placeholder - bind variables
    • SQLite SELECT with placeholder
    • SQLite INSERT with placeholder
• print
  • • Rust and print
    • Rust - flush STDOUT - read STDIN
• println
  • • Hello World
    • Rust and print
    • Create a String
• proc-macro
  • • Procedural macros
• pub
  • • Module defined in the main.rs file
    • Module in other file
• push
  • • Create empty string and grow it using push and push_str
    • Append to string with push_str
    • Mutable vector of numbers, append (push) values
    • Mutable empty vector for numbers (push)
    • Mutable empty vector with type definition
    • Stack and the capacity of a vector
    • Sort vector of hashes
    • Hash of vectors in Rust
    • Add items to a hash of vectors using a function
• push_back
  • • Queue
• push_str
  • • A literal string cannot be changed
    • Really mutable string
    • Create empty string and grow it using push and push_str
    • Append to string with push_str
    • Mutable string in immutable variable
    • Mutable string
• pwd
  • • Current working directory
• query
  • • CREATE and SELECT in Memory
• rand
  • • Random module
• random
  • • Random module
• range
  • • for loop in Rust
• raw
  • • SQLite get_autocommit function
• RawHtml
  • • Rocket - Hello World returning static RawHtml
    • Rocket - Generated RawHtml page
    • Rocket - Calculator with GET (passing multiple parameters)
    • Rocket - Calculator with GET (passing multiple parameters) using enum
• rayon
  • • replace map with par_iter
• Read
  • • Rust - counter
• read_dir
  • • Rust list content of directory
    • du - disk usage
    • List content of a directory - listdir
    • Iterate over files in current directory
    • Iterate over files in current directory calling next
• read_line
  • • Rust - read input from STDIN
• read_to_string
  • • Rust - read content of a file as a string
    • Rust - counter
    • Liquid include
    • Read Simple JSON file into a struct
• ReadDir
  • • Iterator to walk directory tree
• Reader
  • • Parse in-memory CSV string into StringRecords and structs
• ReaderBuilder
  • • Read CSV remove (trim) whitespaces from around the values
• RecordId
  • • CREATE and SELECT in Memory
• recv
  • • Threads with messages
• Redirect
  • • Rocket - Redirect to another page
• RefCell
  • • Testing with temorary directory passed in a thread-local variable
    • thread-local variables
• Regex
  • • Regex match exact text
    • Regex match numbers - capture using parentheses
• register_filter
  • • Tera - create your own filter
• register_template_string
  • • Quick start - registered template
• relative
  • • Rocket - Serving static files
• remove
  • • Remove element from hash
    • Basic Set operations in Rust
• render
  • • Quick start - registered template
    • Liquid Hello World
    • Tera Hello World
• render_template
  • • Quick start - unregistered template
• render_widget
  • • Ratatui - Hello World
• repalce_all
  • • Regex
• replace
  • • String replace all
    • Regex
• replace_range
  • • String replace range
• replacen
  • • String replace limited times
• Request
  • • Rocket - Request guard - FromRequest
• required
  • • Repeat the same argument several times
    • Limit the number of values for a vector argument
• reqwest
  • • Simple blocking http client with reqwest
    • http-client async with reqwest
    • Download many URLs in parallel (async)
• resize
  • • Vector length and capacity
• Restult
  • • Factorial functions returning Result
• Result
  • • Demo error handling with Result
    • Demo error handling with Result and question mark
    • main returning Result - Set exit code
    • Error in internal function
    • Tera - create your own filter
• return
  • • Rust function return value (integer i32)
• rev
  • • Rust - reverse string
• reversed
  • • Liquid for loop: limit, offset, reversed
• RocksDB
  • • SurrealDB with RocksDB backend in Rust embedded client with local database storage
• Root
  • • SurrealDB connect to server
• round
  • • rounding float
    • Compare floating point numbers by rounding
• run_simple_native
  • • eGUI Window
• RUST_TEST_THREADS
  • • Testing with temporary directory passed as an environment variable (test in a single thread RUST_TEST_THREADS)
• saturating_add
  • • Handle overflow and underflow - saturating
• saturating_pow
  • • Exponent protecting against overflow - checked_pow, saturating_pow
• SCHEMAFULL
  • • SurrealDB - define field type - try to create entry with incorrect type (int, string)
• SeeOther
  • • Rocket - Redirect to another page
• SELECT
  • • SQLite in memory example with INSERT and SELECT
    • SurrealDB in-memory with SQL demo in Rust - CREATE (INSERT), SELECT, UPDATE, DELETE
    • SurrealDB - CREATE, SELECT, DELETE
• Selector
  • • Parse HTML
• self
  • • Implement a method for a struct
    • Enumeration colors - with method
• Self
  • • Enumeration colors - with constructor
• send
  • • Threads with messages
    • Counter with message passing
• serde
  • • Parse in-memory CSV string into StringRecords and structs
    • Read CSV remove (trim) whitespaces from around the values
    • Liquid with struct
    • JSON serialize struct
    • Read YAML file
• serde_json
  • • Read Simple JSON file manually
    • JSON serialize struct
    • JSON serialize examples
• serde_yaml
  • • YAML in Rust
• serde_yml
  • • YAML in Rust
    • Read YAML file
• Serialize
  • • Serialize struct and Deserialize JSON
• set
  • • Basic Set operations in Rust
• set_current_dir
  • • Change directory
• Shell
  • • Clap complete enum - name of shell
• SHIFT
  • • Ratatui - handle keyboard events
• short
  • • Clap Short arguments
• shrink_to_fit
  • • Remove the last element using pop, reduce capacity
• signin
  • • SurrealDB connect to server
• simple_logger
  • • Simple Logger new
• size
  • • Show size of file
    • Liquid: length of string, size of vector
• skip
  • • Skip the first N elements of an iterator
    • Skip and take from an iterator
• sleep
  • • Show that threads work in parallel
• Some
  • • Demo None handling with Option
    • Create Option
    • Rust - string characters
    • Vector with optional values
    • Equality of Some - values
• sort
  • • Sort vector of numbers
    • Sort vector of strings using sorting condition
• sort_by
  • • Sort vector of strings using sorting condition
    • Sort vector of hashes
• spawn
  • • Simple thread
    • Simple thread with join
    • Show that threads work in parallel
    • Handle panic! in threads
• split
  • • Split string
    • Split string into iterator
    • Split string into vector
    • Hash of vectors in Rust
    • Add items to a hash of vectors using a function
• split_whitespace
  • • Split string on whitespace
    • Remove extra whitespace from string
    • Split string create hash
• sprintf
  • • String formatting
• sqrt
  • • Square root (sqrt)
    • NaN - Not a Number
• starts_with
  • • Rust - string starts with
• status
  • • Simple blocking http client with reqwest
    • Run external programs
• Status
  • • Rocket - Redirect to another page
    • Rocket - Blog using request guard - FromRequest
• std
  • • Using the Standard library
• std::cmp::Ordering
  • • Error handling on the command line
• std::env
  • • Command line arguments - args
    • Command line arguments - print all args
    • Accessing envrionment variables
    • List environment variables
• std::env::var
  • • Accessing envrionment variables
• std::env::vars
  • • List environment variables
• std::fmt::Debug
  • • Debug struct (Point)
• std::fmt::Display
  • • Print struct (Point)
• std::io
  • • Rust - read input from STDIN
• std::io::Write
  • • Rust - flush STDOUT - read STDIN
• std::process::exit
  • • Command line program with a single file parameter
• std::ptr::addr_of
  • • Compare memory address (pointer)
• std::time::Duration
  • • Duration
• std::time::Instant::now
  • • Measure elapsed time
• stdin
  • • Rust - read input from STDIN
• strftime
  • • Format DateTime
• strict_add
  • • Handle overflow and underflow - strict
• String
  • • Really mutable string
    • Rust - read input from STDIN
    • Create a String
    • From and Into for String and &str
    • Return a string
• String::new
  • • Create empty string and grow it using push and push_str
• StringRecord
  • • Read CSV file as a vector of StringRecords
• struct
  • • Create simple struct
    • Struct composition: Circle
    • Compare structs for partial equality - PartialEq
    • Mapping structs based on more than one key
    • Structs as keys of a HashMap
    • Struct using enum
    • Read CSV file as structs
    • Read YAML file
    • Struct and type alias - Polygon
• success
  • • Run external programs
• SurrealDB
  • • SurrealDB with RocksDB backend in Rust embedded client with local database storage
• surrealdb::Result
  • • SurrealDB in-memory with SQL demo in Rust - CREATE (INSERT), SELECT, UPDATE, DELETE
• syn
  • • Parse string to Rust expression using syn
• systinfo
  • • sysinfo - Which Operating System are we running on?
• TABLE
  • • SurrealDB - define field type - try to create entry with incorrect type (int, string)
• take
  • • Take the first N elements of an iterator
    • Skip and take from an iterator
• target
  • • Cargo build
• tarpaulin
  • • Test coverage report with tarpaulin
• temp_dir
  • • Get the temporary directory
• tempdir
  • • Create temporary directory
• Template
  • • Rocket - Echo using POST
• Tera
  • • Tera - create your own filter
    • Rocket - Hello World with Tera template
    • Rocket - Echo using GET
    • Rocket - Echo using POST
    • Use Tera filters (length)
• test
  • • Testing a library crate
    • Test a function in a crate
• Thing
  • • CREATE and SELECT in Memory
• thousands
  • • thousands crate for struct with Display (commafy)
• thread
  • • Simple thread
    • Simple thread with join
    • Show that threads work in parallel
• thread_local
  • • Testing with temorary directory passed in a thread-local variable
    • thread-local variables
• threadpool
  • • Use threadpool with messages
• time
  • • Handle time (using the time crate)
• to_lowercase
  • • To lower, to upper case
• to_owned
  • • Rust - read STDIN - remove trailing newline (trim, chomp)
    • Create a String
• to_string
  • • Create a String
    • Append to string with push_str
    • Create String from literal string using to_string
    • Create hash from key-value pairs after split
    • Serialize struct and Deserialize JSON
• to_uppercase
  • • To lower, to upper case
• to_value
  • • Tera - create your own filter
• TODO
  • • Approximately compare floating point numbers
    • Complex numbers
    • Two references to the same vector
    • Filter vector of structs (cloning)
    • Convert vector of structs to vector of references
    • Filter vector of structs without copy
    • Accessing the last element of a vector
    • Insert element in vector
    • Vector with optional values - None or out of range?
    • Vector with optional values
    • Vector length and capacity
    • References to numbers
    • Exercise: concatenate file content
    • Pass vector to function
    • Create a crate
    • Testing crates
    • Return value from thread
    • Counter with message passing
    • Exercise: run several functions on the same text
    • Solution: run several functions on the same text
    • Deprecated: A threaded version of the map function
    • Tasks with different processing time
    • map with threads
    • tokio
    • Clap: default value only if the flag was provides
    • Read lists of JSON structures JSON-lines
    • Read YAML file
    • Iter strings
    • Non-circular iterators
    • Solution: Implement function to repeate a string
    • Types of macros
    • Greetings
    • unsafe powers
    • Unsafe - core dump
    • Rocket - Calculator with GET (passing multiple parameters) using enum
    • Rocket - Two applications in separate files
    • Rocket - Redirect to another page
    • Rocket Guards - experiment
    • Rocket return user-id
    • Rocket People and groups
    • Rocket Userid in path
    • SurrealDB CREATE SELECT in different ways
    • SurrealDB experiments
    • SurrealDB - toggle
    • SurrealDB in Docker using the CLI
    • SurrealDB - references and SELECT
    • SurrealDB Demo
    • SurrealDB columns with schema
    • Counter with Sea-ORM
    • Ratatui - confirmation popup to verify intent to exit
    • Ratatui - widgets
    • Ordered floats
    • Add method to HashMap that sums the values
    • Passing string to function
    • map with threads with Mutex
    • Reference to a number
• todo
  • • todo! for and if-condition
    • todo! for a match
• TokenStream
  • • Procedural macros
• tokio
  • • http-client async with reqwest
    • Download many URLs in parallel (async)
• trace
  • • Rocket - Logging to the console
• trace_macros
  • • Debugging macros using trace_macros
• trim
  • • Convert string to number that ends with newline
    • Convert string to number after removing whitespaces
    • Remove leading and trailing whitespace
• trim_end
  • • Rust - read STDIN - remove trailing newline (trim, chomp)
    • Remove leading and trailing whitespace
• trim_end_matches
  • • Fix URL parameter
• trim_start
  • • Remove leading and trailing whitespace
• true
  • • Rust: boolean values true and false
• tuple
  • • Rust tuple - fixed-sizes, mixed, ordered collection
    • Function returning multiple values
• type
  • • Type alias
    • Struct and type alias - Polygon
• type_name
  • • Print type of variable
• type_name_of_val
  • • Print type of variable
• u8
  • • Rust numerical types
• underscore
  • • Destructuring tuple
• unimplemented
  • • unimplemented
• union
  • • Union and bitor
• unit
  • • The empty tuple is called the unit
• UNIX_EPOCH
  • • Rocket - Generated RawHtml page
• unsert
  • • Accessing values
• unwrap
  • • Error handling in file operations
    • Convert the PathBuf to String to compare
• unwrap_or
  • • Accessing values
• upcase
  • • Liquid filters on strings: upcase, downcase, capitalize
• UPDATE
  • • SurrealDB in-memory with SQL demo in Rust - CREATE (INSERT), SELECT, UPDATE, DELETE
• update
  • • SurrealDB - CREATE, SELECT, UPDATE, DELETE
• uri
  • • Rocket - Redirect to another page
• url
  • • Fix URL parameter
• use_db
  • • SurrealDB connect to server
• use_ns
  • • SurrealDB connect to server
• usize
  • • Solution: count digits in file
• utc
  • • Chrono now
• Value
  • • Read Simple JSON file manually
    • Tera - create your own filter
• value_name
  • • Clap: improving the help with value_name
• value_parser
  • • Clap validate number range
    • Clap: fixed list of valid values for generic type
    • Clap: arbitraty function to validate argument )
• ValueEnum
  • • Clap: one of a fixed list of values (enumerated)
• Vec
  • • Command line arguments - args
    • Command line arguments - print all args
    • Create hash from vector of tuple pairs
    • Repeat the same argument several times
    • Limit the number of values for a vector argument
• vec
  • • Fixed vector of numbers
    • Mutable empty vector for numbers (push)
    • Mutable empty vector with type definition
    • Split string into vector
    • Create hash from vector of tuple pairs
    • Iterate over vector of numbers
• VecDeque
  • • Queue
• version
  • • Clap show the version number from Cargo.toml
• VERSION
  • • Take version number from Cargo.toml
• warn
  • • Rocket - Logging to the console
• watch
  • • Rocket - Automatic reload of the application (watch)
• when
  • • Liquid flow control: case/when
• where
  • • Generic functions to add numbers using where clause
• while
  • • While loop in Rust
• with_capacity
  • • Vector length and capacity
• with_ymd_and_hms
  • • Parse string to datetime
• Write
  • • Rust - flush STDOUT - read STDIN
    • Rust - write to file
    • Rust - counter
• writeln
  • • Rust - write to file
• Ws
  • • SurrealDB connect to server