Trouble making a decision from an ajax request response

Question

I'm doing an ajax request with jquery to check whether a username is taken or not in a database and changing text inside a div (in this case a div with id="wnguser"). I am able to get the response from the php script and the text does appear where it should (I echo one of two strings: "username available" or "username unavailable" from the php script). I am not able though to use the response from the php script, the variable data (in this case one of the two strings mentioned above) to make a decision.

For example the the if() which I marked as //DOES NOT WORK. Can someone tell me how to make the if() work or the correct way to take a decision base on the response of the php script which is one of two strings.

Thank You

<script type="text/javascript">

        $(document).ready(function(){

        $('#username').keyup(function(){

            var user = $('#username').val();
            $.post('checkusername.php', {username: user}, function(data){

            $('#wnguser').html(data);

            //DOES NOT WORK
            if (data === "username available"){
                 execute some code
            }

            });

        });



        });

    </script>

Do a `console.log('"' + data + '"');` to see exactly what the result is. It may have some spaces around it. — jfriend00, Jul 14 '15 at 04:49
Thanks @jfriend00, console.log('"' + data + '"'); did the trick. The string had a line break. — randomAsker, Jul 14 '15 at 05:07

score 0 · Answer 1 · answered Jul 14 '15 at 04:50

0

In your checkusername.php you have to give the condition instead of the current file.

answered Jul 14 '15 at 04:50

Nasir Iqbal

53
9

score -1 · Answer 2 · answered Jul 14 '15 at 05:10

-1

if (String(data).trim() === "username available"){
                 //execute some code
            }

answered Jul 14 '15 at 05:10

Mahesh

1,063
1
12
29

score -2 · Answer 3 · edited May 23 '17 at 11:58

-2

use this:

if (data == "username available"){
    execute some code
}

Refer this for more info

edited May 23 '17 at 11:58

Community

1
1

answered Jul 14 '15 at 04:50

amit_183

961
3
19
36

Trouble making a decision from an ajax request response

3 Answers3