locutus/esm/rust/str/split_terminator.js

Locutus other languages' standard libraries to JavaScript for fun and educational purposes

export function split_terminator(delimiter, str) {
    //      discuss at: https://locutus.io/rust/split_terminator/
    // parity verified: Rust 1.85
    //     original by: Kevin van Zonneveld (https://kvz.io)
    //          note 1: Splits like split, but drops the trailing empty field when the input ends with the delimiter.
    //       example 1: split_terminator('.', 'A.B.')
    //       returns 1: ['A', 'B']
    //       example 2: split_terminator('::', 'x::y::z')
    //       returns 2: ['x', 'y', 'z']
    //       example 3: split_terminator('.', 'A..B..')
    //       returns 3: ['A', '', 'B', '']
    const source = String(str);
    const value = String(delimiter);
    if (value === '') {
        return ['', ...Array.from(source)];
    }
    const parts = source.split(value);
    if (source.endsWith(value)) {
        parts.pop();
    }
    return parts;
}