JS获取数组最大值、最小值及长度的方法

//最小值Array.prototype.min = function() {var min = this[0];var len = this.length;for (var i = 1; i < len; i++){if (this[i] < min){min = this[i];}}return min;}//最大值Array.prototype.max = function() {var max = this[0];var len = this.length;for (var i = 1; i < len; i++){if (this[i] > max) {max = this[i];}}return max;}//数组长度var array = new array(1,2,3,2,4,55,2);alert(array.length);//输出7