Is there any Javascript function similar to PHP's JSON_DECODE function? - php

Question

I'm using jQuery AJAX to load part of my web page. And my AJAX datatype is HTML. I've heard JSON is faster and I've used it too. But JSON doesn't seem to work when the data is a little big, for example:
It works when the data is short:
{"name" : "John Smith" , "age" : "32" , "status" : "married" }
{"name" : "Bella Gilbert" , "age" : "26" , "status" : "single" }
But not when the data is a little big:
{"name" : "John Smith" , "age" : "32" , "status" : "married" }
{"name" : "Bella Gilbert" , "age" : "26" , "status" : "single" }
{"name" : "Joseph Morgan" , "age" : "28" , "status" : "single" }
{"name" : "Paul Wesley" , "age" : "24" , "status" : "single" }
Is there any way I can just fetch the data without stating dataType as JSON and then decode it using javascript, as similar to PHP's function:
json_decode($data);
Or if not then please suggest a way to handle large JSON data using jQuery AJAX. Thanks!

Answer 1

use this
var obj = jQuery.parseJSON(json_data);
It will decode the json_data
http://api.jquery.com/jQuery.parseJSON/

Answer 2

use JSON.parse() to convert a JSON string to an object:
var jsontext = '{"firstname":"Jesper","surname":"Aaberg","phone":["555-0100","555-0120"]}';
var contact = JSON.parse(jsontext);
document.write(contact.surname + ", " + contact.firstname);
// Output: Aaberg, Jesper
jquery version: (Parses a JSON string.)
var obj = jQuery.parseJSON('{"name":"John"}');
alert(obj.name);

Answer 3

You could use the $.parseJSON() method to parse a JSON encoded string into the corresponding javascript object. But if you are performing an AJAX request to your server and the data is coming from it you don't need to use this method at all because jQuery will automatically parse the result passed to the success function:
$.ajax({
url: '/somescript.php',
dataType: 'json',
success: function(result) {
// result is already a parsed javascript object that you could manipulate directly here
}
});
And if you write your server side script properly so that it sets the response Content-Type HTTP header to application/json (which you should always be doing anyways) you don't even need to indicate to jQuery the dataType parameter. jQuery will analyze this response header and automatically parse the result for you:
$.ajax({
url: '/somescript.php',
success: function(result) {
// result is already a parsed javascript object that you could manipulate directly here
}
});

Answer 4

the jQuery.parseJSON method can do this.

Answer 5

Your json object is malformed. Should look like this:
[{"name" : "John Smith" , "age" : "32" , "status" : "married" },
{"name" : "Bella Gilbert" , "age" : "26" , "status" : "single" },
{"name" : "Joseph Morgan" , "age" : "28" , "status" : "single" },
{"name" : "Paul Wesley" , "age" : "24" , "status" : "single" }]
Use this tool to check your object.