For loop with two arguments in Coffeescript

Question

I'm trying to implement this loop with Coffeescript

for( var i = arr.length; i--; )

Any ideas?

I don't know any coffescript but aren't you supposed to have some kind of exit condition to that loop ? And what is actually your problem ? — Laurent S., Jul 02 '14 at 16:52
@Bartdude The exit condition is `i--`. When that evaluates to a falsy value (ie, 0) the loop will exit. This is completely fine. The problem is that that loop is a *JavaScript* loop, and he's trying to figure out how to write the equivalent CoffeeScript loop. — user229044, Jul 02 '14 at 16:54
@Bartdude The question is straightforward if you've done any work with Coffeescript. — Foreign Object, Jul 02 '14 at 16:56
Well, I'll be a little less stupid when going to bed this evening. As I stated I don't know any coffeescript, but will have a look at it :-) — Laurent S., Jul 02 '14 at 16:59

score 1 · Accepted Answer · answered Jul 02 '14 at 16:52

1

for i in [arr.length-1..0] by -1
    # Something!

answered Jul 02 '14 at 16:52

Ry-

This is great. I'm going to try it out now. – Foreign Object Jul 02 '14 at 16:55

1 Answers1