CoffeeScript: Expand array in function call

Question

In Ruby I can call methods with array elements used as positional parameters like this

method(fixed_arg1, fixed_arg2, *array_of_additional_args)

Here the "*" operator expands the array in place.

I'm trying to do the same in CoffeeScript, but haven't found a way. Specifically, I want to pass additional arguments in a call to a jQuery function

$('#my-element').toggle(true, *config.toggleOptions)

The syntax above does not work, obviously, and I'm looking for a way that does.

Stefan · Accepted Answer · 2012-06-09 11:14:49Z

11

Try

$('#my-element').toggle(true, config.toggleOptions...)

answered Jun 9, 2012 at 11:14

Stefan

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1 Comment

Thanks. Now that you show that example, it seems kind of obvious, but it wasn't before I knew it.

gprasant · Accepted Answer · 2013-12-31 07:54:38Z

2

You need to splat it.

fun(1,2,3,4,5)

fun = (first, second, rest...) ->
alert first # 1
alert second # 2
alert rest   # [3, 4, 5 ]

answered Dec 31, 2013 at 7:54

gprasant

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