tegomass

let xhrQueue = [];
$(document).ajaxSend(function(event,jqxhr,settings){
    xhrQueue.push(jqxhr);
});
$(document).ajaxComplete(function(event,jqxhr,settings){
    let i;
    if((i=$.inArray(jqxhr,xhrQueue)) > -1){
        xhrQueue.splice(i,1);
    }
});

tegomass

/*--- waitForKeyElements():  A utility function, for Greasemonkey scripts,
    that detects and handles AJAXed content.

    Usage example:

        waitForKeyElements (
            "div.comments"
            , commentCallbackFunction
        );