Ajax界面，然后没有

Question

I want to package a ajax call into an interface without then.

If i do like this, it will just return 'No ajax return';

var ajaxReturn = ajaxFunction();
function ajaxFunction(){
    var text = 'No ajax return';
    // get fileName using an ajax get
    $.ajax();
    return text;
}

If i do like this, it will be ugly for using then;

function ajaxFunction(){
    var text = 'No ajax';
    var dtd = $.Deferred();
    $.ajax();
    return dtd.promise();
}

$.when(ajaxFunction()).then();

I just want the interface to be simple and return the right thing, can i?

//return the right
var ajaxReturn = ajaxFunction();

Answer 1

Well..., ajax is asynchronous so you either use .then() or use a callback logic... Doing synchronous ajax is not a option for me, so I won't even mention it.

The alternative to .then() would be something like this:

ajaxFunction(function(res){ // pass a function into it
    // this will be called when the ajax is done
    alert(res);
});
function ajaxFunction(callback){
    // get fileName using an ajax get
    $.ajax({
        success: callback
    });
}

But again, maybe you can use just a normal ajax callback pattern anyway

$.ajax({
    ...
    success: function(res){
        // use the res
    }
});