html5 canvas addEventListener separate function

Question

currently my code works with this method:

canvas.addEventListener('mousemove', function(event) {....},false)

now I want to separate the function, make own function. like:

  canvas.addEventListener('mousemove', myFunction(1), false)
  canvas.addEventListener('mousedown', myFunction(0), false)

  function myFunction (event, separator) {..}

but its not working

please help, thanks

devnull69 · Accepted Answer · 2014-04-28 12:41:00Z

1

The second parameter for addEventListener is supposed to be a function reference (i.e. an object representing a function to be called in case of an event).

But you provide the result of the call to myFunction() as a parameter, which would only work if myFunction returned a function reference (i.e. if myFunction were a function factory).

function myFunction(myEvent, separator) {
   if(separator==0)
      return function(myEvent) {
         // your code goes here
      }
}

answered Apr 28, 2014 at 12:41

devnull69

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