CODEWITHSUNDEEP
jqueryjsonajaxgetjson
Macbernie
Macbernie

Reputation: 1323

Stop the current getJSON request

I have a function who call a getJSON. But the getJSON call is often not finish when the function is call again.

So I want to stop the previous getJSON still running before send the new one.

I try to save my getJSON call in a global variable and call abort() in the beginning of my function, but I got an error

TypeError: vr is undefined

Here is my function

var vr;

function getVol() {
    vr.abort();

    var data = {
        form : fields
    };

    vr = $.getJSON('getVol.php', data).done(function(r) {

        $.each( r, function( key, item ) {
            $.each( item, function( key, value ) {
                if(parseInt(value) > maxValue) maxValue = parseInt(value);
            });
        });

    }).fail(function() {
        console.log( "error" );
    });
}

Thanks for help

Upvotes: 3

Views: 3785

Answers (1)

Barmar
Barmar

Reputation: 780843

You're getting an error because when you call the function the first time, vr is empty. You need to check that it's set first.

function getVol() {
    if (vr) {
        vr.abort();
    }
    // rest of function
}

Upvotes: 6

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