Sorting arrays of numbers in JavaScript is lexicographic:

const numbers = [20, 1, 100];
numbers.sort();

numbers; // [1, 100, 20]

This is surprising for lists of numbers, but makes some sense for lists of mixed types.

Giving JS a spaceship operator would yield a concise and only mildly hideous solution:

numbers.sort((a, b) => a <=> b);

numbers; // [1, 20, 100]