Here you can find the source of random()
Array.prototype.random = function() { return this[Math.floor( Math.random() * this.length )] }
Array.prototype.rand = function() { return this[Math.floor(Math.random() * this.length)]; };
Array.prototype.randEl = function () { return this[Math.floor(Math.random() * this.length)] };
Array.prototype.randFromArr = function() { var a = this[Math.floor(Math.random() * this.length)] return a };
Array.prototype.random = function() { return this[Math.floor(Math.random() * this.length)]; };
Array.prototype.random = function() { return this[~~(this.length * Math.random())]; }; function rand(n) { return ~~(Math.random() * n);
Math.randomInt = function (min, max) { return Math.floor(Math.random() * (max - min +1)) + min }; Array.prototype.random = function () { return this[Math.randomInt(0, this.length-1)];
Array.prototype.random = function() { if (!this.length) return; return this[Math.floor(Math.random() * this.length)]; };