AJAX: Check if a string is JSON?

Question

My JavaScript sometimes crashes on this line:

var json = eval(\'(\' + this.responseText + \')\');

Crashes are caused when the argument of <

Answer 1

Hers's the jQuery alternative...

try
{
  var jsonObject = jQuery.parseJSON(yourJsonString);
}
catch(e)
{
  // handle error 
}