在javascript中将forloop更改为while循环？ [英] changing forloop to while loop?in javascript

问题描述

我想将此forloop更改为while语句：



var arr3 = new Array（）;

var arr4 = new Array（）;



for（i = 0; i< arr3.length; i ++）{

if（arr3 [i] ！= undefined&& indexarr [i]！= undefined）{

arr4.push（arr3 [i]）;

indexarr1.push（indexarr [i] ）; }

I would like to change this forloop to a while statement:

var arr3=new Array();
var arr4=new Array();

for(i=0;i<arr3.length;i++){
if(arr3[i]!=undefined && indexarr[i]!=undefined){
arr4.push(arr3[i]);
indexarr1.push(indexarr[i]); } }

推荐答案

学会自己动手：比较和 [ ^ ]

Learn to do it yourself: Comparing For and While[^]

var arr3=new Array();
var arr4=new Array();
var i = 0;
 
while(i<arr3.length)
{
    if(arr3[i]!=undefined && indexarr[i]!=undefined)
    {
        arr4.push(arr3[i]);
        indexarr1.push(indexarr[i]); 
    } 
 i++;
}

是这样吗？



-KR

Is it so ??

-KR

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