将javascript数组转换为字符串 [英] Convert javascript array to string

问题描述

我正在尝试遍历值"列表，并将其转换为字符串.这是代码:

I'm trying to iterate over a "value" list and convert it into a string. Here is the code:

var blkstr = $.each(value, function(idx2,val2) {                    
     var str = idx2 + ":" + val2;
     alert(str);
     return str;
}).get().join(", ");    

alert()函数可以正常工作并显示适当的值.但是以某种方式，jquery的.get()函数无法获得正确的对象并失败.我在做什么错了?

alert() function works just fine and displays the proper value. But somehow, jquery's .get() function doesn't get the right sort of object and fails. What am I doing wrong?

推荐答案

如果value是关联数组，则这样的代码可以正常工作:

If value is associative array, such code will work fine:

var value = { "aaa": "111", "bbb": "222", "ccc": "333" };
var blkstr = [];
$.each(value, function(idx2,val2) {                    
  var str = idx2 + ":" + val2;
  blkstr.push(str);
});
console.log(blkstr.join(", "));

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>

(输出将显示在开发人员控制台中)

(output will appear in the dev console)

正如Felix所说的，each()只是迭代数组，仅此而已.

As Felix mentioned, each() is just iterating the array, nothing more.

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