@a11d/equals/dist/equals.js

A value equality utility library.

import { equals } from './symbol.js';
Object[equals] = function (a, b) {
    if (a === b) {
        return true;
    }
    if (Object.equals === Object[equals]) {
        if (a?.equals) {
            return a.equals(b);
        }
        if (b?.equals) {
            return b.equals(a);
        }
    }
    else {
        if (a?.[equals]) {
            return a[equals](b);
        }
        if (b?.[equals]) {
            return b[equals](a);
        }
    }
    return false;
};