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js取出数组的每个值

1. 首先定义一个数组 var arr=[2,4,5,3,5,3,0];//这里以整形数组为例2. 确定数组的长度arr.length;3. 利用循环语句遍历数组4. var arr=[2,4,5,3,5,3,0]; var arrvalue;//用于存放取出的数组的值 for(var i=0;i arrvalue=arr[i];//数组的索引是从0开始的 console.log(arrvalue);//把取出的值打印在控制台上 }

function loads() {<br> var shuz = document.getElementById("shuz").value;<br> if (shuz == null || shuz == '') {<br> } else {<br> alert(shuz.length);<br> }<br> }<br>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.

首先这个变量 shuz 就是不是数组.其它人回复的取数组值 的方法是正确的.

有两种方法var arr = [1,2,4];1、 var newArr = arr.slice(0,2); //从0开始 取两个元素2、var newArr = arr.splice(0,2); //这种方法会改变原数组

写了个例子,已做好注释:<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>无标题文档</title><script language="JavaScript" type="

javascript获取数组中每个数据的方式如下:<script> var test = arr[“aaa”,"bbb","ccc","ddd"] ; for(i=0;idocument.write(test[i]+""); }</script> 输出值:aaa bbb ccc ddd

方法很多,下面是利用indexOf来实现的例子:<script language=javascript> var desk1_id,desk2_id,desk3_id; var deskidS,deskidM; deskidS=101; deskidM=200; desk2_id=",101,105,108,154,"; desk3_id=",187,150,172,163,"; for (i=deskidS;

var arr=[ {"a":"1","b":"2","c":"3"}, {"a":"12","b":"22","c":"32"},{"a":"13","b":"23","c":"33"}]; var value_A = '12'; for(var i in arr){ if(arr[i].a==value_A){ alert(arr[i].c); return; } }

发现两处1.var value=getInfo(td[j],"value=\"","\"");2.var temp=getInfo(td[j],"");把td写成tds

var array1 = [ {"Num": "A " },{"Num": "B" }]; var array2 = [ {"Num": "A ","Name": "t1 " }, {"Num": "B","Name": "t2"}, {"Num": "C " ,"Name": "t3 "}]; var result = []; for(var i = 0; i < array2.length; i++){ var obj =

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