locutus/esm/kotlin/text/chunked.js

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

export function chunked(str, size) {
    //  discuss at: https://locutus.io/kotlin/text/chunked/
    // original by: Kevin van Zonneveld (https://kvz.io)
    //      note 1: Splits a string into consecutive chunks of at most size, like Kotlin text chunked.
    //   example 1: chunked('kotlin', 2)
    //   returns 1: ['ko', 'tl', 'in']
    //   example 2: chunked('abcdefg', 3)
    //   returns 2: ['abc', 'def', 'g']
    //   example 3: chunked('', 4)
    //   returns 3: []
    const source = String(str);
    const width = Math.trunc(Number(size));
    if (!Number.isFinite(width) || width <= 0) {
        throw new RangeError('chunked(): size must be a positive integer');
    }
    const out = [];
    for (let i = 0; i < source.length; i += width) {
        out.push(source.slice(i, i + width));
    }
    return out;
}