CoffeeScript If Statement not Working in Rails

Question

I've looked at the CoffeeScript documentation, but can't get this to work.

if $("#main").hover
    alert('clicked')

When I reload the page, the alert always pops up. I have it properly indented in my .js.coffee file, so I'm not sure what I'm missing.

What are you even trying to do with the if statement? That's not how you'd do something when you hover on an element. — Dave Newton
– Dave Newton, Commented Dec 5, 2013 at 20:45
I was trying to detect whether or not the element was hovered. — Elijah Murray
– Elijah Murray, Commented Dec 5, 2013 at 20:55

cpjolicoeur · Accepted Answer · 2013-12-05 20:22:14Z

1

if $(#"main").hover will always return true, that is why the alert is always triggered.

.hover is just returning the "hover" function from jQuery which will evaluate to true in an if statement

answered Dec 5, 2013 at 20:22

cpjolicoeur

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Comments

Community · Accepted Answer · 2017-05-23 12:28:41Z

0

If you want to do something when hover events fire over #main (which could fire a LOT, btw), you might try:

$('#main').hover () -> 
  do_something()

If you just want to determine in a given moment whether or not the mouse is currently hovering #main, you should do:

if $('#main').is(':hover') 
  do_something()

CommunityBot

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answered Dec 20, 2013 at 16:30

Paul B

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