How do I write a jquery function that accepts a callback as a parameter

Question

I Have the following function.

function ChangeDasPanel(controllerPath, postParams) {

    $.post(controllerPath, postParams, function(returnValue) {

        $(         


        

Answer 1

You know that global variables and functions are evil, so why not put your's into the jQuery namespace:

$.extend({
  myFunc : function(someArg, callbackFnk){
    var url = "http://example.com?q=" + someArg;
    $.getJSON(url, function(data){

      // now we are calling our own callback function
      if(typeof callbackFnk == 'function'){
        callbackFnk.call(this, data);
      }

    });
  }
});

$.myFunc(args, function(){
  // now my function is not hardcoded
  // in the plugin itself
});

Read this post to get a better understanding: Creating callback functions in jQuery