JSFiddle - React, Tailwind, and code Playground

HTML

<div id="test"></div>

JavaScript

// attach the .compare method to Array's prototype to call it on any array
Array.prototype.compareIdentical = function (array) {
    // if the other array is a falsy value, return
    if (!array)
        return false;

    // compare lengths - can save a lot of time
    if (this.length != array.length)
        return false;

    for (var i = 0; i < this.length; i++) {
        // Check if we have nested arrays
        if (this[i] instanceof Array && array[i] instanceof Array) {
            // recurse into the nested arrays
            if (!this[i].compare(array[i]))
                return false;
        }
        else if (this[i] != array[i]) {
            // Warning - two different object instances will never be equal: {x:20} != {x:20}
            return false;
        }
    }
    return true;
}
// attach the .compare method to Array's prototype to call it on any array
Array.prototype.compare = function (array) { 
    // if the other array is a falsy value, return
    if (!array)
        return false;

    // compare lengths - can save a lot of time
    if (this.length != array.length)
        return false;

    this.sort();
    array.sort();
    
    for (var i = 0; i < this.length; i++) {
        // Check if we have nested arrays
        if (this[i] instanceof Array && array[i] instanceof Array) {
            // recurse into the nested arrays
            if (!this[i].compare(array[i]))
                return false;
        }
        else if (this[i] != array[i]) {
            // Warning - two different object instances will never be equal: {x:20} != {x:20}
            return false;
        }
    }
    return true;
}

$('#test').append("[1, 2, [3, 4]].compareIdentical ([1, 2, [3, 4]]) === false  ||| ");
$('#test').append([1, 2, [3, 4]].compareIdentical ([1, 2, [3, 2]]) === false);
$('#test').append("<br /><br />");


$('#test').append('[1, "2,3"].compareIdentical ([1, 2, 3]) === false; ||| ');
$('#test').append([1, '2,3'].compareIdentical ([1, 2, 3]) ===...