Split a string only the at the first n occurrences of a delimiter

Question

I\'d like to split a string only the at the first n occurrences of a delimiter. I know, I could add them together using a loop, but isn\'t there a more straight forward appr

Answer 1

Yet another implementation I just wrote:

export function split(subject, separator, limit=undefined, pad=undefined) {
    if(!limit) {
        return subject.split(separator);
    }
    if(limit < 0) {
        throw new Error(`limit must be non-negative`);
    }
    let result = [];
    let fromIndex = 0;
    for(let i=1; i

Doesn't use regexes, nor does it over-split and re-join.

This version guarantees exactly limit elements (will pad with undefineds if there aren't enough separators); this makes it safe to do this kind of ES6 stuff:

let [a,b,c] = split('a$b','$',3,null);
// a = 'a', b = 'b', c = null