jashkenas--coffeescript/documentation/coffee/array_comprehensions.coffee

# Eat lunch.
eat food for food in ['toast', 'cheese', 'wine']

# Fine dining
courses = ['salad', 'entree', 'dessert']
menu index + 1, dish for dish, index in courses

# Health conscious meal
foods = ['broccoli', 'spinach', 'chocolate']
eat food for food in foods when food isnt 'chocolate'
documentation waypoint 2009-12-21 16:41:45 +00:00			`# Eat lunch.`
Adding warning about accidentally-comprehended-functions. Issue #896. 2010-12-05 20:29:28 +00:00			`eat food for food in ['toast', 'cheese', 'wine']`
[docs] examples of using guards and indices in array comprehensions 2011-09-11 19:24:16 +00:00
			`# Fine dining`
			`courses = ['salad', 'entree', 'dessert']`
Use "index" for index variable in for loop This confused me every time I Ctrl+F'ed the home page for "index" and only got this cryptic statement: "Comprehensions replace (and compile into) for loops, with optional guard clauses and the value of the current array index." Now I can see how the index is used in the code. 2011-11-23 15:24:36 +00:00			`menu index + 1, dish for dish, index in courses`
[docs] examples of using guards and indices in array comprehensions 2011-09-11 19:24:16 +00:00
			`# Health conscious meal`
			`foods = ['broccoli', 'spinach', 'chocolate']`
			`eat food for food in foods when food isnt 'chocolate'`