Safely turning a JSON string into an object

Question

Given a string of JSON data, how can I safely turn that string into a JavaScript object?

Obviously I can do this unsafely with something like:

var obj = eval("(" + json + ')'); 

but that leaves me vulnerable to the JSON string containing other code, which it seems very dangerous to simply eval.

Answer 1

JSON.parse(jsonString) is a pure JavaScript approach so long as you can guarantee a reasonably modern browser.

Answer 2

The jQuery method is now deprecated. Use this method instead:

let jsonObject = JSON.parse(jsonString); 

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Original answer using deprecated jQuery functionality:

If you're using jQuery just use:

jQuery.parseJSON( jsonString ); 

It's exactly what you're looking for (see the jQuery documentation).