Parse JSON using javascript and get specific value in array

Question

In my console log the array look like this:

{"userid":"5502","fullname":"My fullname","email":"[email protected]","user_access":"real"}

Now on my ajax, I have a handle code for the data array that the server sends to the app:

function handleData(responseData) {
    var access = responseData;

    console.log(access);
    if (access == '"real"') {
        alert("Welcome");
        location.href = "home.html";
    } else {
        alert("Your username and password didn\'t match.");
    }
}

How I can get the specific value of this "user_access":"real" in array and use it in condition.

like this:

if (access == '"real"') { // What should be the format of access variable?
    alert("Welcome");
    location.href = "home.html";
}

That is not an array but object..Use Property accessors to access the property of object — Rayon
– Rayon, Commented Jun 6, 2016 at 8:15
Your question (the example object) is inaccurate. You've asked how to check the access property, when you actually wanted the user_access property. — evolutionxbox
– evolutionxbox, Commented Jun 6, 2016 at 9:55
@evolution, yes my wrong inputting the real object I used on my code. Thanks anyway. — c.k
– c.k, Commented Jun 7, 2016 at 0:25

Mohit Bhardwaj · Accepted Answer · 2016-06-07 05:51:23Z

4

function handleData(responseData) {
                var response = JSON.parse(responseData);//assuming you are getting the response as a string

                var access = response.user_access;    
                console.log(access);

                if (access == "real") {
                    alert("Welcome");
                    location.href = "home.html";    
                } else {
                    alert("Your username and password didn\'t match.");
                }    
            }//handleData()

Normally, we want our response to be in json ( or we can say 'object' ) form, so that we can easily access its inner properties. So, if it's already an object, you do not need to use JSON.parse. You can directly access any property like this - responseData.user_access . But if it's in string form, then you have to use JSON.parse() first to parse the string into JSON ( or object ) format.

edited Jun 7, 2016 at 5:51

answered Jun 6, 2016 at 8:20

Mohit Bhardwaj

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8 Comments

c.k Over a year ago

console.log(access); it is undefined.

Mohit Bhardwaj Over a year ago

can you please paste the output of these two lines: console.log( responseData ) ; console.log( typeof responseData );

c.k Over a year ago

console.log( responseData ) ; --> {"user_id":"5502","user_fullname":"My fullname","user_email":"[email protected]","user_access":"real"} console.log( typeof responseData ); --> string

Mohit Bhardwaj Over a year ago

ok, so it does not have access property, but user_access. I have updated my answer accordingly. Please try once again.

c.k Over a year ago

Hi @Mike,sorry just got back to work. It is working now thank you for helping me out. My mistake I write wrong object on my example. It should be user_access not access.

|

Azamantes · Accepted Answer · 2016-06-06 08:44:57Z

1

If it is not surrounded by "" around the {} brackets then just do

function handleData(responseData) {
    var access = responseData.access;
    if (access === 'real') {
        alert("Welcome");
        location.href = "home.html";
    } else {
        alert("Your username and password didn\'t match.");
    }
}

answered Jun 6, 2016 at 8:44

Azamantes

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1 Comment

c.k Over a year ago

It is undefined when I try to display (access) it in console log.

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