Remove whitespace: trim, strip in Rust

How to remove the spaces and/or newline from the end of a string.

How to remove spaces, tabs from either end of a string?

Rust has the trim_end method to remove any white-space from the end of a string. (right-hand side). The trim_start method to remove the white-spaces from the beginning (left-hand side) of the string.

There used to be a trim_left and trim_right but they were replaced by the trim_start and trim_end.

trim will remove the white-spaces from both ends of the string.

These will remove spaces, tabs, new-lines from the beginnin or the end of the string.

examples/trim/src/main.rs

fn main() {
    let text = "   text with space inside and outside \t \n\n";
    println!("original:   '{}'", text);
    println!("trim:       '{}'", text.trim());
    println!("trim_end    '{}'", text.trim_end());
    println!("trim_start: '{}'", text.trim_start());
}

The result:

$ cargo run -q
original:   '   text with space inside and outside

'
trim:       'text with space inside and outside'
trim_end    '   text with space inside and outside'
trim_start: 'text with space inside and outside

'