Sort Array Elements (string with numbers), natural sort

Question

I have an array like;

[\"IL0 Foo\", \"PI0 Bar\", \"IL10 Baz\", \"IL3 Bob says hello\"]

And need to sort it so it appears like;

Answer 1

Pad numbers in string with leading zeros, then sort normally.

var naturalSort = function (a, b) {
    a = ('' + a).replace(/(\d+)/g, function (n) { return ('0000' + n).slice(-5) });
    b = ('' + b).replace(/(\d+)/g, function (n) { return ('0000' + n).slice(-5) });
    return a.localeCompare(b);
}

var naturalSortModern = function (a, b) {
    return ('' + a).localeCompare(('' + b), 'en', { numeric: true });
}

console.dir((["IL0 Foo", "PI0 Bar", "IL10 Baz", "IL3 Bob says hello"].sort(naturalSort)));

console.dir((["IL0 Foo", "PI0 Bar", "IL10 Baz", "IL3 Bob says hello"].sort(naturalSortModern)));