get all matches of a regex on a string.

getAllMatches.js

// see https://github.com/lodash/lodash/issues/2459

const getAllMatches = (source, regex) => {
    const matches = [];
    source.replace(regex, function() {
        matches.push({
            match: arguments[0],
            offset: arguments[arguments.length-2],
            groups: Array.prototype.slice.call(arguments, 1, -2)
        });
        return arguments[0];
    });
    return matches;
}