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YOUãŸã¡!Rubyã§injectã—ã¡ã‚ƒã„ãªYO!
ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®å˜åœ¨ä¾¡å€¤ã¯å‡¦ç†ã®è‡ªå‹•åŒ–ã§ã™ã€‚ä»»æ„ã®é›†åˆã«å¯¾ã—ã¦å‡¦ç†ã‚’ç¹°ã‚Šè¿”ã—ãã®çµæžœã‚’è¿”ã™ã€ãã‚ŒãŒãƒ—ãƒã‚°ãƒ©ãƒ ã§ã™ã€‚ã¤ã¾ã‚Šé›†åˆã«å¯¾ã—ã¦å‡¦ç†ã‚’ç¹°ã‚Šè¿”ã™èƒ½åŠ›ãŒã€ãƒ—ãƒã‚°ãƒ©ãƒ ã®ä¾¡å€¤ã‚’æ±ºå®šä»˜ã‘ã‚‹ã®ã§ã™1ã€‚ ã€Œæ‰‹ç¶šãåž‹è¨€èªžã€ã§ã¯ãƒ«ãƒ¼ãƒ—ãŒå‡¦ç†ã®ç¹°ã‚Šè¿”ã—ã‚’å®Ÿç¾ã™ã‚‹ãŸã‚ã®é‡è¦ãªæ‰‹æ³•ã®ä¸€ã¤ã§ã™ã€‚ã—ã‹ã—ãƒ«ãƒ¼ãƒ—ã¯ã€ä¸€æ™‚å¤‰æ•°ã‚’ç”¨æ„ã—ã¦ãƒ—ãƒã‚°ãƒ©ãƒžãŒãƒ«ãƒ¼ãƒ—ã®é€²è¡Œã‚’ç®¡ç†ã—ãªã‘ã‚Œã°ãªã‚‰ãªã„ã€ã¨ã„ã†æ¬ ç‚¹ãŒã‚ã‚Šã¾ã™ã€‚ãã—ã¦ãã®ç®¡ç†ãƒŸã‚¹ãŒãƒã‚°ã¨ãªã‚Šã¾ã™ã€‚ ã€Œé–¢æ•°åž‹è¨€èªžã€ã§ã¯å†å¸°ãŒå‡¦ç†ã®ç¹°ã‚Šè¿”ã—ã‚’å®Ÿç¾ã™ã‚‹ãŸã‚ã®é‡è¦ãªæ‰‹æ³•ã®ä¸€ã¤ã§ã™ã€‚å†å¸°ã§ã¯å†å¸°ã®é€²è¡Œã¯ãã®æ§‹é€ ã«åŸºã¥ã„ã¦è‡ªå‹•çš„ã«ãªã•ã‚Œã‚‹ã®ã§ã€ãƒ—ãƒã‚°ãƒ©ãƒžãŒãã‚Œã‚’ç®¡ç†ã™ã‚‹å¿…è¦ã¯ã‚ã‚Šã¾ã›ã‚“ã€‚ã—ã‹ã—ãã®ä¸€æ–¹ã§ã€å‡¦ç†ãŒå¤šæ®µéšŽã«æ¸¡ã‚‹ç«‹ä½“çš„ãªã‚‚ã®ã¨ãªã‚‹ã®ã§ã€ãã®å‹•ä½œã®ç†è§£ãŒå¹³é¢çš„ãªãƒ«ãƒ¼ãƒ—å‡¦ç†ã«æ¯”ã¹ã¦é›£ã—ã„ã¨ã„ã†æ¬ ç‚¹ãŒã‚ã‚Šã¾ã™ã€‚ç¿’å¾—ã«ã¯æ…£ã‚ŒãŒå¿…è¦ã§ã™ã€‚ Rubyã¯ã€æ‰‹ç¶šãåž‹è¨€èªžã¨é–¢æ•°åž‹è¨€èªžã®ä¸¡æ–¹ã®å´
ishideo 2017/07/26
enumerable

ruby

array

list

inject

methods
ãƒªãƒ³ã‚¯
list method implementation with `inject`
ishideo 2017/07/26
array

list

ruby

inject

methods

gist
ãƒªãƒ³ã‚¯
Scala, Ruby, underscore.js ã§ã‚³ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³ãƒ¡ã‚½ãƒƒãƒ‰ã®å¯¾å¿œè¡¨ - Qiita
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ishideo 2017/07/25
scala

ruby

underscore.js

javascript

collection

method

qiita

array

list
ãƒªãƒ³ã‚¯
Rubyã§ã‚‚ãƒªã‚¹ãƒˆå†…åŒ…è¡¨è¨˜ã—ãŸã„ï¼Ÿ - hp12c
Pythonã‚„Haskellã‚„Erlangã«ã¯ãƒªã‚¹ãƒˆå†…åŒ…è¡¨è¨˜ã¨å‘¼ã°ã‚Œã‚‹ ãƒªã‚¹ãƒˆã®ä¸ã§æ–°ãŸãªãƒªã‚¹ãƒˆã‚’ç”Ÿæˆã™ã‚‹æ§‹æ–‡ãŒã‚ã‚‹ã‚ˆ ä¾‹ãˆã°Rubyã§ãƒªã‚¹ãƒˆã®è¦ç´ ã®å€¤ã‚’å€ã«ã—ãŸã„å ´åˆã¯ Array#mapã‚’ä½¿ã†ã‚ˆã l = [*1..10] l.map { |i| i*2 } # => [2, 4, 6, 8, 10, 12, 14, 16, 18, 20] ã“ã‚Œã‚’Erlangã®ãƒªã‚¹ãƒˆå†…åŒ…è¡¨è¨˜ã§ã¯ä»¥ä¸‹ã®ã‚ˆã†ã«æ›¸ã‘ã‚‹ã‚“ã L = lists:seq(1,10). [X*2 || X <- L]. % => [2,4,6,8,10,12,14,16,18,20] ãƒªã‚¹ãƒˆLã‹ã‚‰Xã‚’é¸ã³å‡ºã—ãã‚Œã«2ã‚’æŽ›ã‘ãŸã‚‚ã®ã‚’è¿”ã™ ã¤ã¾ã‚Š || ã®å·¦è¾ºã«ã¯å‡ºåŠ›ã¨ãªã‚‹å¼ã‚’ å³è¾ºã«ã¯é™å®šåã‚’æ›¸ã X <- Lã¯Erlangã§ã¯Generatorã¨å‘¼ã¶ã‚‰ã—ã„ã‚ˆ æ¬¡ã«ãƒªã‚¹ãƒˆã‹ã‚‰å¶æ•°ã ã‘ã‚’é¸ã‚“ã§ ãã‚Œã‚‰ã‚’å€ã«ã—ãŸã„å ´åˆã‚’è€ƒãˆã‚‹ã‚ˆ Ru
ishideo 2016/05/26
ruby

array

map

list

select

compact

erlang

comprehension

haskell

rbridge
ãƒªãƒ³ã‚¯
JavaScriptã§ãƒªã‚¹ãƒˆå†…åŒ…è¡¨è¨˜ã‚’ä½œã£ã¦ã¿ãŸ - guccyonikki
è¿½è¨˜ â€»ä»•æ§˜ã‚’å¤‰æ›´ã—ã¾ã—ãŸã€‚ JavaScriptã§å†…åŒ…è¡¨è¨˜ã€Newãƒãƒ¼ã‚¸ãƒ§ãƒ³ haskellã‚„Erlangã«ã‚ã‚‹ã‚ˆã†ãªãƒªã‚¹ãƒˆå†…åŒ…è¡¨è¨˜ã‚’ç†è§£ã™ã‚‹ç‚ºã«ã‚‚ã€ ã¾ãŸä¾¿åˆ©ã£ã½ã„ã®ã§JavaScriptã§ã‚‚ä½¿ãˆã‚‹ã‚ˆã†å®Ÿè£…ã—ã¦ã¿ã‚‹äº‹ã«ã—ãŸã€‚ å®Ÿè£…å‰ã«æ¤œç´¢ã‚’ã‹ã‘ã¦ã¿ã‚‹ã¨æ—¢ã«ãã†ã„ã†äº‹ã‚„ã£ã¦ã‚‹äººã¯ã„ã‚‹ã¿ãŸã„ã ã€‚ JavaScriptã§ãƒªã‚¹ãƒˆã®å†…åŒ…è¡¨è¨˜(ã®çœŸä¼¼) | æ±äº¬å«‰å¦¬ ã¾ãç†è§£ã™ã‚‹ç‚ºã«ã¯å®Ÿè£…ã—ã¦ã¿ã‚‹ã®ãŒä¸€ç•ªã£ã¦äº‹ã§ã€è»Šè¼ªã®å†ç™ºæ˜Žãªã‚“ã¦æ°—ã«ã—ãªã„ã€‚ ãã‚Œã«æ—¢ã«é€”ä¸ã¾ã§ã‚„ã£ã¦ã‚‹ã—ãã€‚ã§ã¯ã„ã£ã¦ã¿ã‚ˆãƒ¼ã€‚ ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã‚’ã©ã†ã™ã‚‹ï¼Ÿ ã¾ãšå†…åŒ…è¡¨è¨˜ã®åˆ†è§£ã‹ã‚‰ã€‚ [x | x <- [1,2,3,4,5,6], x < 4] ã“ã‚“ãªæ„Ÿã˜ã®è¨˜æ³•ã§ã€[1,2,3]ã¨ã„ã†ãƒªã‚¹ãƒˆã¨ç‰ä¾¡ã«ãªã‚‹ã€‚ ã“ã®æ›¸ãæ–¹ã¯å…ƒã€…ã€æ•°å¦ã®é›†åˆã®å®šç¾©ã‚’è¡¨ç¾ã™ã‚‹è¨˜æ³•ã«ç”±æ¥ã—ã¦ã„ã‚‹ã‚‰ã—ãã€ x <- [1,2,3,4,5,6]ã£ã¦ã®ã¯æ•°å¦ã®å ´
ishideo 2008/09/24
comprehension

list

javascript

array
ãƒªãƒ³ã‚¯
JavaScriptã§å†…åŒ…è¡¨è¨˜ã€Newãƒãƒ¼ã‚¸ãƒ§ãƒ³ - guccyonikki
æ˜¨æ—¥ä½œã£ãŸJavascriptã®å†…åŒ…è¡¨è¨˜ã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã‚’ä¸€æ–°ã—ã¾ã—ãŸã€‚ listCé–¢æ•°ã®å¼•æ•°ã«è¦ç´ ã‚’æ¸¡ã™ã‚¹ã‚¿ã‚¤ãƒ«ã‚’ã‚„ã‚ã¦ã€é…åˆ—ã®è¦ç´ ã«å¼ã‚’ç›´æŽ¥æ›¸ãã‚¹ã‚¿ã‚¤ãƒ«ã«å¤‰æ›´ã€‚ ï¼ˆå†…åŒ…è¡¨è¨˜çš„ã«ã¿ã¦ï¼‰ã‚ˆã‚Šè¦‹ãŸç›®ãŒç›´è¦³çš„ã«ãªã£ãŸã¨æ€ã„ã¾ã™ã€‚ ã¾ããã‚Œã§ã‚‚è¨€èªžä»•æ§˜ã®åˆ¶é™ä¸Šã€æœ€çµ‚çš„ã«é–¢æ•°ã‚³ãƒ¼ãƒ«ã—ãªã„ã¨ã„ã‘ã¾ã›ã‚“ãŒã€‚ è¨˜è¿°ä¾‹ ["x + y|x <- [1,3,5], y <- [2,4,6], x > y"].lisc(); // [5,7,9] æ›¸ãæ–¹ã¯çµæ§‹æŸ”è»Ÿã§ã€æ–‡å—åˆ—ã®ã¿ã§ãƒãƒ¼ãƒã‚«ãƒ«ãƒ©ã‚¤ãƒ³ã‚’ä½¿ã£ã¦å¼ã¨ãƒªã‚¹ãƒˆã‚’åˆ†ã‘ã‚‹æ¨™æº–ã‚¹ã‚¿ã‚¤ãƒ«ä»¥å¤–ã«ã‚‚ã€é…åˆ—ã®è¦ç´ ã¨ã—ã¦ãã‚Œãžã‚Œã®å¼ã‚’ä¸Žãˆã‚‹äº‹ã‚‚ã§ãã¾ã™ã€‚ ["[x,y]","x <- [1,3,5,7]", "y <- [1,2,3,4]", "(x + y) % 2== 0"].lisc(); // [[1,1], [1,3], [3,1], [3,3], [5,1]
ishideo 2008/09/24
comprehension

list

javascript

array
ãƒªãƒ³ã‚¯
403 Forbidden
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ishideo 2008/09/24
comprehension

list

javascript

array
ãƒªãƒ³ã‚¯
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