How can i return a value from a callback function to the caller?

Question

How can i make this little function \"imageExists\" return wether the ajax request was successful or not?

function imageExists(path){
    $.ajax({
        url: p         


        

Answer 1

I believe you'll have to use synchronous mode and use a separate a variable for storing the return value.

function imageExists(path){
    var isSuccess;
    $.ajax({
        url: path,
        type: 'HEAD',
        async: false,
        error:
            function(){
                isSuccess = false;
                return false;
            },
        success:
            function(){
                isSuccess = true;
                return true;
            }
    });
    return isSuccess;
}