如何在js中转换为数组？

Question

I have this string which I want to convert to an array:

var test = "{href:'one'},{href:'two'}";

So how can I convert this to an array?:

var new = [{href:'one'},{href:'two'}];

Answer 1

It depends where you got it from..

If possible you should correct it a bit to make it valid JSON syntax ( at least in terms of the quotes )

var test  = '{"href":"one"},{"href":"two"}';
var arr = JSON.parse('[' + test + ']');

Notice the " around both keys and values.

( making directly var test = '[{"href":"one"},{"href":"two"}]'; is even better )

Answer 2

If you could modify the original string to be valid JSON then you could do this:

JSON.parse(test)

Valid JSON:

var test  = '[{"href":"one"},{"href":"two"}]';

Answer 3

If changing the string to be valid JSON is not an option, and you fully trust this string, and its origin then I would use eval:

var test = "{href:'one'},{href:'two'}";
var arr = eval("[" + test + "]");

On that last note, please be aware that, if this string is coming from the user, it would be possible for them to pass in malicious code that eval will happily execute.

As an extremely trivial example, consider this

var test = "(function(){ window.jQuery = undefined; })()";
var arr = eval("[" + test + "]");

Bam, jQuery is wiped out.

Demonstrated here

Answer 4

Using jQuery:

var str = '{"id":1,"name":"Test1"},{"id":2,"name":"Test2"}';
var jsonObj = $.parseJSON('[' + str + ']');

jsonObj is your JSON object.