turn string into an array?

Question

If I have this below as a string, how can I easily make that into an array?

"[[0.01,4.99,0.01],[5,14.95,0.05]]"

I want the same result as:

var x = [[0.01,4.99,0.01],[5,14.95,0.05]];

Answer 1

var x = JSON.parse("[[0.01,4.99,0.01],[5,14.95,0.05]]");

Or the way jQuery does JSON parsing (better than eval ):

var x = (new Function("return " + "[[0.01,4.99,0.01],[5,14.95,0.05]]"))();

To make this answer complete, you can use a polyfill for older browsers to support JSON.parse and JSON.stringify . I recommend json3 , because Crockfords json2 is to crockfordy (insiders know what I mean).

Answer 2

var x = JSON.parse("[[0.01,4.99,0.01],[5,14.95,0.05]]");

对于没有内置JSON对象的旧浏览器，您可能希望下载Crockford的json2.js ，它定义了一个具有相同API的JSON对象（如果尚未定义）。