Question

I need to translate a piece of JavaScript code into CoffeeScript, here it is:

jQuery(function($) {
if (typeof ($.fn.jCarouselLite) != 'undefined') {
  $("#slider_1").jCarouselLite({
    btnNext: "#slider_1 .next",
    btnPrev: "#slider_1 .prev",
    visible: 1
  });
}

The if condition is causing a problem, Here’s what I’m doing at that point:

jQuery ->
  $ = jQuery
    if typeof $.fn.jCarouselLite not 'undefined'
      $("#slider_1").jCarouselLite
        btnNext: "#slider_1 .next
        btnPrev: "#slider_1 .prev"
        visible: 1

But the compiler is complaining saying: PARSE ERROR ON LINE 2: UNEXPECTED ‘POST_IF’

Can anybody help me? How can correctly translate that If condition into Coffeescript?

Thanks,

Answer 1

not is a unary operator, so I think you meant

if typeof $.fn.jCarouselLite isnt 'undefined'

… but you can just use ?:

if $.fn.jCarouselLite?

… but that error seems like it would be caused by funny indentation, like on line 2…