[removed] Is it possible to pass a variable into a callback function that is assigned to a variable?

Question

A lot of people say that this is asked too much in the comments, which made me hesitant to ask this, but I still have not found a solution in their answers, mostly because (

Answer 1

I belive you wanted something like that

function handleAjaxRequest(params) {
    var context = {'b':'inner', 'c': params['c']};
    function rendered(html) {
      // render
    }
    function gotPart(part) {
        context['a'] = part;
        engine.render(context).addCallback(rendered);
    }
    ajax.getPart(params).addCallback(gotPart);
}