It's current to see the terms callback, trigger and handler in some API documentations. It is just synonymous or each term correspond to a specific concept?I used to think that this terms are just synonymous, but I must be wrong ...Thanks !
Difference between trigger, handler and callback
terminology;concepts
These are general terms in programming. Often can mean different things but generally speaking...callback is a reference to a function or block of code that is executed by a third party.trigger is a behavior in response to stimuli, and an event may trigger the change of state or as the result of that trigger execute the associated callback.handler is a reference to an object or class that is associated with a behavior. A handler is different from a callback because it's an object that represents a state.Using jQuery AJAX as an example.$.ajax({   url: test.html,   context: document.body}).done(function() {   $(this).addClass(done);});The function() is a callback.The object passed to $.ajax(...) is a handler.The event done() is a trigger.The handler has an event done that when triggered calls the callback to perform $(this).addClass(done);.