Determine whether a given JavaScript action has been initiated by user

Is it possible to determine whether a given JavaScript action has been initiated by user? For instance I want to know whether a link was clicked by user or via jQuery fire event method?

How do you check if an event has been triggered in JavaScript?

To check if event is triggered by a human with JavaScript, we can use the isTrusted property. to check if the event is triggered by a human in our event handler callback. e is the event object and it had the isTrusted property. If isTrusted is true , then the event is triggered by a human.

Which action is done by users in JavaScript?

a) Events are the actions done by users or an application that occurs on the webpage.

What is function E in JavaScript?

"function(e)" is the event handling function (on event, object is created). "e" is the object handler (object is made accessible).

event.which will be undefined if the event is triggered with code.

jsFiddle.