javascript - 将关联项推送到 JavaScript 中的数组中

Question

如何更正以下代码？

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

Answer 1

做类似 associative array in JavaScript 的东西你必须使用对象。

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/