javascript - 如何在 JavaScript 中将字符串转换为数组？

Question

[["SFO",37.77493,-122.41942],["LAX",34.05223,-118.24368]]

这是我的字符串，我想将其转换为:

arr[0] = ["SFO"....
arr[1] = ["LAX"...

编辑

让我澄清一下:

var str = '[["SFO",37.77493,-122.41942],["LAX",34.05223,-118.24368]]'

Answer 1

您可以使用 JSON.parse :

JSON.parse('[["SFO",37.77493,-122.41942],["LAX",34.05223,-118.24368]]')

IE7及以下需要:

<!--[if lt IE 8.]>
<script src="http://ajax.cdnjs.com/ajax/libs/json2/20110223/json2.js"></script>
<![endif]-->

JSON.parse 将字符串转换为 javascript 对象。数组是对象。上面的字符串将解析成一个数组:

var array = JSON.parse('[["SFO",37.77493,-122.41942],["LAX",34.05223,-118.24368]]')
alert ( typeof array ); // object
alert ( array instanceof Array); // true