Methods of JSON parsing summary _javascript tips

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"String conversion to Object"

parse is used to parse out a JSON object from a string, such as
var str = ' {' Name ': ' Demo ', ' Age ': ' 22 '} '

Results

Json.parse (str)
Object
Age: "22"
Name: "Demo"
__proto__: Object

1.eval (' (' + str + ') '); the//eval () method executes the string (possibly the JS script) dynamically, which can easily cause system security problems.

var str= ' {' name ': ' John '} ';
var obj = eval (' (' + str + ') '); 

2.parseJSON (str)

var str= ' {' name ': ' John '} ';
var obj = Jquery.parsejson (str)

3.json.parse (str)

var str = ' {' name ': ' Mady ', ' Age ': ' ';
var obj = json.parse (str);

4.jquery-json Extension Library download:http://code.google.com/p/jquery-json/

"Convert object to String"

stringify () is used to parse out strings from an object, such as
var a = {A:1,b:2}

Results

Json.stringify (a)
• "{" A ": 1," B ": 2}"

You can use the tojsonstring () or global method Json.stringify () to convert a JSON object to a JSON string.

For example:

var last=obj.tojsonstring (); Convert a JSON object to a JSON character

Or

var last=json.stringify (obj); Converts a JSON object to JSON character
alert (last);

The above is a small set to introduce the JSON parsing method Summary of all the narration, I hope to help everyone, if you have any questions please give me a message, small series will promptly reply to everyone. Here also thank you very much for the cloud Habitat Community website support!