奇怪的jQuery多类型锯齿状数组 [英] jquery multitype Jagged array behaving strangely
本文介绍了奇怪的jQuery多类型锯齿状数组的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
请参考:
http://jsfiddle.net/MasterOfKitties/v7xbu/7/
/*This is the desired behavior*/
/*var A = [1, 2, 3]*/
/*var B = "hello", [1, 2, 3],
"hello", [2, 3, 2],
"hello", [1, 5, 1]]*/
var A = new Array();
var B = new Array();
function fnMakeArray()
{
var strTemp;
var arrTemp = new Array();
strTemp = parseInt(window.prompt("Enter a number until you hit cancel",""));
while (strTemp>0)
{
arrTemp.push(strTemp);
strTemp = parseInt(window.prompt("Enter a number until you hit cancel",""));
}
A[0] = "hello";
A[1] = arrTemp;
alert(A);
}
function fnReplicateArray()
{
B.push(A);
fnDisBArray();
alert(B);
}
function fnDisBArray()
{
var strTemp;
for(var x = 0; x<B.length;x++)
{
strTemp += "<P>" + B[x] + "</p>"
}
document.getElementById('parse').innerHTML = strTemp ;
}
由于某种原因,当试图显示B数组时,它显示为undefined.此外,即使b [1]或b [2]元素被排列,b [0]元素也开始发生根本变化,似乎并不能正确地增加锯齿状数组.
For some reason, when attempting to display the B array, it puts out undefined. Furthermore, it does not seem to increment the jagged array correctly, as the b[0] element begins to radically change even though the b[1] or b[2] element is being arranged.
有帮助吗?发生了什么事?
Any assistance? What's going on?
推荐答案
您必须使用值初始化strTemp
.
喜欢
var strTemp = "";
代替
var strTemp;
根据您的情况.
排队时
strTemp += "<P>" + B[x] + "</p>"
第一次执行strTemp
是undefined
因此将其转换为字符串undefined
并将其附加在开头
is executing for the first time strTemp
is undefined
so its converted to string as undefined
and gets appended in the begining
请参见工作小提琴
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