www.wdby.net > js ArrAy 字符串

js ArrAy 字符串

小数的话用parseFloat,整数用parseInt。 举个例子: var myArr=new Array();myArr[0]="1";myArr[1]="2.1";var ma0=parseInt(myArr[0]);//myArr[0]中字符串是整数,用parseInt。var ma1=parseFloat(myArr[1]);//myArr[1]中字符串是小数,用parse...

可以用数组的字符串拼接函数join(),例如 var arr = ["12", "34", "56"]; alert(arr.join("")); // join的参数是分隔符

数组对象 Array的方法arr.join([separator])将所有元素连接成一个字符串。参数separator是一个可选的字符串,用作分隔符。 //例1: var cnb = ["零","一","二","三","四","五","六","七","八","九","十"]; document.writeln(cnb.join()); // 输...

通过eval把字符串转换成array. 代码: var str = '["1","2","3","4"]';//相关字符串var arr = eval(str);//通过eval执行字符串,结果arr是一个数组,数组内容是"1","2","3","4"补充: eval() 函数可计算某个字符串,并执行其中的的 JavaScript ...

var str = "[{name:'aaaa',value:'1111'},{name:'aaaa',value:'1111'}]"; var array = eval ("(" + str + ")"); console.log(array);

var s = "111,222,333,444"; var arr = s.split(","); //arr即是转化后的数组

var a = [1,2,3];alert(a.join());alert(a.join(""));var b = ['1','2','3'];alert(b.join(""));

一、数组转字符串 需要将数组元素用某个字符连接成字符串,示例代码如下: var a, b; a = new Array(0,1,2,3,4); b = a.join("-"); 二、字符串转数组 实现方法为将字符串按某个字符切割成若干个字符串,并以数组形式返回,示例代码如下: var s ...

var inArray = function(arr, item) { for (var i = 0; i < arr.length; i++) { if (arr[i] == item) { return true; } } return false; }; var links = new Array(); links[0] = "notice"; links[1] = "purchase"; links[2] = "report"; var a...

网站地图

All rights reserved Powered by www.wdby.net

copyright ©right 2010-2021。
www.wdby.net内容来自网络,如有侵犯请联系客服。zhit325@qq.com