Syntax for arrays in Coffeescript
Imagine you have an array such as:
l = [1, 2, 3, 4]This line:
k = x*2 for x in lWill return : 12, and this line:
k = (x*2 for x in l)will return [2, 4, 6, 8]
Without parenthesis in CoffeeScript it is equivalent to a forEach() in javascript.
Written by Esteban
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