if-statement: Having trouble amking if statement within loop work in coffeescript

mercredi 22 juin 2016

I’m using Rails 4.2.3. I have this Javascript

  for (i = 0; i < listItems.length; i++) {
    if (listItems[i] === window.location.pathname)
      return i
  }

that I want to turn into coffee script. So I tried

if window.location.pathname in [listItems[i]] return i for i in [0...listItems.length]

but upon running this, I get the error “SyntaxError: [stdin]:77:3: unexpected if”. What is the right way to translate this JS?

if-statement