翻訳と辞書 Words near each other ・ lisp machine lisp ・ lisp object-oriented programming system ・ lisp, objects, and symbolic programming ・ lisp-linda ・ lisp70 ・ lispkit ・ lispkit lisp ・ lisptalk ・ lispview ・ list ・ list comprehension ・ list enhanced ・ listless ・ listproc ・ lists ・ listserv ・ liszt ・ lite ・ literal ・ literate programming Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク list comprehension ： FOLDOC list comprehension An expression in a functional language denoting the results of some operation on (selected) elements of one or more lists. An example in Haskell: [ (x,y) | x <- [1 .. 6], y <- [1 .. x], x+y < 10] This returns all pairs of numbers (x,y) where x and y are elements of the list 1, 2, ..., 10, y <= x and their sum is less than 10. A list comprehension is simply "syntactic sugar" for a combination of applications of the functions, concat, map and filter. For instance the above example could be written: filter p (concat (map ( x -> map ( y -> (x,y)) [1..x]) [1..6])) where p (x,y) = x+y < 10 According to a note by Rishiyur Nikhil , (August 1992), the term itself seems to have been coined by Phil Wadler circa 1983-5, although the programming construct itself goes back much further (most likely Jack Schwartz and the SETL language). The term "list comprehension" appears in the refe スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.