先用typeof判断类型,然后parseFloat转换,判断结构是否NaN。
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本回答被网友采纳