Question

I have this script to make a new ajax call when the user scroll down. But how to make it to do it once. Since if the user scroll to fast they are n ajax calls with the same data.

 $(window).scroll(function(){

            whenTo=$(window).scrollTop();

        if(whenTo>=($(document).height()-($(window).height())-600)){
// make ajax call
}


});

Answer 1

How about adding in a boolean value that checks if it has already been done?

for example:

var hasLoaded = false;
$(window).scroll(function(){

        whenTo=$(window).scrollTop();

        if(!hasLoaded && (whenTo>=($(document).height()-($(window).height())-600))){
            hasLoaded = true;
            // make ajax call
        }
});

Using this method means you can just change the variable to false whenever you like to allow the ajax to be called again if needed.