Functions 101
Fire up your favorite text editor and create a new coffee file, because it’s time to call our first function:
| | console.log 'Hello, functions!' |
Hit your editor’s Run command, and you’ll get this greeting:
| | Hello, functions! |
No surprises there. The only CoffeeScript-specific feature we’re taking advantage of is implicit parentheses, which allows us to pass arguments to console.log without wrapping them in ().
Now let’s make things a little more interesting:
| | console.log (-> 'Hello, IIFE!')() |
| | Hello, IIFE! |
What happened? Let’s break it down:
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-> defines a function. CoffeeScript uses these two characters in lieu of JavaScript’s function keyword.
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The function returns the string ’Hello, IIFE!’ because CoffeeScript functions have ...
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