JS获取数组最大值、最小值及长度的方法_javascript技巧

//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