javascript global variable undefined in jquery get

Question

How to assign value to global variable

function ok(){ 
    var idglobal; 

    $.get("<?php echo base_url('testchat/rtc/showchat'); ?>", function (data) {
        data = $.parseJSON(data);

        $.each(data, function (i, item) {
            idglobal = item.id;
        });
    });
}

console.log(idglobal);

above this code to assign value to global variable but the result is undefined

score 0 · Answer 1 · answered Apr 30 '16 at 08:42

0

You console.log isn't printing it because it runs before the promise resolves.

Try:

  function ok(){ 
   var idglobal; 
            $.get("<?php echo base_url('testchat/rtc/showchat'); ?>", function (data) {
                data = $.parseJSON(data);
                $.each(data, function (i, item) {
                    idglobal = item.id;
                });
                console.log(idglobal);
            });
            }

The value of idglobal should be the last item.id.

answered Apr 30 '16 at 08:42

Bruno Garcia

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1

And to be clear the value of `idglobal` will only ever be the last id of the returned data. – David Barker Apr 30 '16 at 08:44
yes its work, but how to print value after $.get ? – Trisna Apr 30 '16 at 08:57
Glad it answers your question. Regarding your second question: console.log will run after $.get finishes. Your callback is executed once the HTTP request finishes. – Bruno Garcia Apr 30 '16 at 09:10

javascript global variable undefined in jquery get

1 Answers1