JSON data retrieval using javascript

Question

Hello guys i'm working with user login and when an user submits the login credentials an API is being called using ajax and if the login credentails are correct/ wrong i'm getting the response and after stringifying the data is displayed in the following format in console.

If true {"$P_SUCCESS":true}

If false {"$P_SUCCESS":false}

Now i want to read the value true from the above string and want to redirect an user to a new page based on the condition.

I tried different options but all in vain.

Thanks for your help in advance.

show the code you tried.

Robin
– Robin

2015-04-08 06:05:47 +00:00
Commented Apr 8, 2015 at 6:05 — Robin
– Robin, Commented Apr 8, 2015 at 6:05
var redirect = JSON.parse('{"$P_SUCCESS":true}');

Hemant Pawar
– Hemant Pawar

2015-04-08 06:05:58 +00:00
Commented Apr 8, 2015 at 6:05 — Hemant Pawar
– Hemant Pawar, Commented Apr 8, 2015 at 6:05

adricadar · Accepted Answer · 2015-04-08 06:14:07Z

2

You can access the property of the object by specifing the name between [] (ex: object['name']).

var redirect = JSON.parse('{"$P_SUCCESS":true}')
var success = redirect['$P_SUCCESS']; // get value of $P_SUCCESS
alert(success);

edited Apr 8, 2015 at 6:14

answered Apr 8, 2015 at 6:07

adricadar

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Comments

shweta chinchore · Accepted Answer · 2015-04-08 06:10:00Z

1

Try this

var data = {"$P_SUCCESS":true};
var result = data['$P_SUCCESS'];
if(result)
{
    //redirect
}

answered Apr 8, 2015 at 6:10

shweta chinchore

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Comments

mathieu · Accepted Answer · 2015-04-08 06:06:39Z

0

var r = eval(...the response...); // or whatever json decoding function
if(r.$P_SUCCESS) document.location = 'http://...';
else document.location = 'http://...';

answered Apr 8, 2015 at 6:06

mathieu

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4 Comments

ytg Over a year ago

eval? so it would parse any JavaScript as long as it comes as a result? a little more security please

mathieu Over a year ago

No i would use the function provided by the framework I use... and since i dont know what he is using... (see the comments)

ytg Over a year ago

Only if vanilla JS had something to do that... :P

mathieu Over a year ago

vanilla JS is not the same from IE6 to Chrome19... That's why we use js libraries... no?

Prateek Jain · Accepted Answer · 2015-04-08 06:13:16Z

0

JSON.parse() is the thing you are looking for, it will parse you the data in the JSON object from where you can read the data easily and redirect the user accordingly.

answered Apr 8, 2015 at 6:13

Prateek Jain

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