How to pass arguments to addEventListener listener function?

Question

The situation is somewhat like-

var someVar = some_other_function();
someObj.addEventListener(\"click\", function(){
    some_function(someVar);
}, false);
<         


        

Answer 1

someVar value should be accessible only in some_function() context, not from listener's. If you like to have it within listener, you must do something like:

someObj.addEventListener("click",
                         function(){
                             var newVar = someVar;
                             some_function(someVar);
                         },
                         false);

and use newVar instead.

The other way is to return someVar value from some_function() for using it further in listener (as a new local var):

var someVar = some_function(someVar);