将关联项推入JavaScript中的数组 [英] Push an associative item into an array in JavaScript

问题描述

如何纠正以下代码?

var arr = [];
var name = "name";
var val = 2;
arr.push(val); //works , but not associative
arr[name] = val; //does not work
console.log(arr);

JSFiddle

推荐答案

要做类似 associativeJavaScript中的数组，您必须使用对象.

To make something like associative array in JavaScript you have to use objects. ​

var obj = {}; // {} will create an object
var name = "name";
var val = 2;
obj[name] = val;
console.log(obj);

演示:: http://jsfiddle.net/bz8pK/1/

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