本文介绍了如何从数组中动态创建javascript变量?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

让我们说一个变量名称的数组:

  var varNames = new Array(name1, NAME2\" , NAME3); 

如何创建 var name1 var name2 var name3 只需循环执行 varNames array ?

解决方案

这将创建全局变量(在全局命名空间中,即窗口)。

  var varNames = [name1,name2,name3]; (var i = 0; i< varNames.length; i + = 1)
{
window [varNames [i]] = 0;
}
name1; // =>由于使用全局变量被认为是不好的做法,所以可以在custum对象内创建变量:



  var myVariables = {} 
,varNames = [name1,name2,name3]; (var i = 0; i< varNames.length; i + = 1)
{
myVariables [varNames [i]] = 0;
}
myVariables.name1; // => 0


Lets say I have an array of names for a variable:

var varNames = new Array("name1","name2","name3");

How do I create var name1, var name2 and var name3 by just looping through the varNames array?

解决方案

This will create global variables (in the global namespace, i.e. window).

var varNames = ["name1","name2","name3"];
for (var i=0;i<varNames.length;i+=1){
  window[varNames[i]] = 0;
}
name1; //=> 0

Since using global variables is considered bad practice, you could create variables within a custum object:

var myVariables = {}
   ,varNames = ["name1","name2","name3"];
for (var i=0;i<varNames.length;i+=1){
  myVariables[varNames[i]] = 0;
}
myVariables.name1; //=> 0

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08-19 22:16