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Name list comprehension
Description list comprehension returns a list of elements created by evaluation of the generators
Related:
Bibliography: List Comprehensions and Arithmetic Sequences [ A Gentle Introduction to Haskell ]

Example 1

Input: [x+2*x+x/2 | x <- [1,2,3,4]]

Output: [3.5,7.0,10.5,14.0]

Example 2

Input: [ odd x | x <- [1..9]]

Output: [True,False,True,False,True,False,True,False,True]

Example 3

Input: [ x*y | x <- [1,2,3,4], y <- [3,5,7,9]]

Output: [3,5,7,9,6,10,14,18,9,15,21,27,12,20,28,36]

Example 4

Input: [x | x <- [1,5,12,3,23,11,7,2], x>10]

Output: [12,23,11]

Example 5

Input: [(x,y) | x <- [1,3,5], y <- [2,4,6], x<y]

Output: [(1,2),(1,4),(1,6),(3,4),(3,6),(5,6)]