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.lengthfor (var i = 1i <leni++){if (this[i] <min){min = this[i]}}return min}最大值:
Array.prototype.max = function() {var max = this[0]var len = this.lengthfor (var i = 1i <leni++){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7function loads() {var shuz = document.getElementById("shuz").value
if (shuz == null || shuz == '') {
} else {
alert(shuz.length)
}
}
shuz数组是从Acton中通过request传递过来用隐藏文本接收的。。如何在js中取出来数组中的值。shuz.length可以取到对应的值。