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

Create a var to hold the response on a global level, then set async to false. You need to then set that var in the success or error function.

http://api.jquery.com/jQuery.ajax/

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