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repon id:repon

arrayã«é–¢ã™ã‚‹reponã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (7)

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Array#zip (Ruby 3.3 ãƒªãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ãƒžãƒ‹ãƒ¥ã‚¢ãƒ«)
zip(*lists) -> [[object]][permalink][rdoc][edit] zip(*lists) {|v1, v2, ...| ...} -> nil è‡ªèº«ã¨å¼•æ•°ã«æ¸¡ã—ãŸé…åˆ—ã®å„è¦ç´ ã‹ã‚‰ãªã‚‹é…åˆ—ã®é…åˆ—ã‚’ç”Ÿæˆã—ã¦è¿”ã—ã¾ã™ã€‚ç”Ÿæˆã•ã‚Œã‚‹é…åˆ—ã®è¦ç´ æ•°ã¯ self ã®è¦ç´ æ•°ã¨åŒã˜ã§ã™ã€‚ ãƒ–ãƒãƒƒã‚¯ä»˜ãã§å‘¼ã³å‡ºã—ãŸå ´åˆã¯ã€ self ã¨å¼•æ•°ã«æ¸¡ã—ãŸé…åˆ—ã®å„è¦ç´ ã‚’é †ç•ªã«ãƒ–ãƒãƒƒã‚¯ã«æ¸¡ã—ã¾ã™ã€‚ [PARAM] lists: é…åˆ—ã‚’æŒ‡å®šã—ã¾ã™ã€‚é…åˆ—ä»¥å¤–ã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’æŒ‡å®šã—ãŸå ´åˆã¯ to_ary ãƒ¡ã‚½ãƒƒãƒ‰ã«ã‚ˆã‚‹æš—é»™ã®åž‹å¤‰æ›ã‚’è©¦ã¿ã¾ã™ã€‚to_ary ãƒ¡ã‚½ãƒƒãƒ‰ã«å¿œç”ã§ããªã„å ´åˆã¯ each ãƒ¡ã‚½ãƒƒãƒ‰ã«ã‚ˆã‚‹æš—é»™ã®åž‹å¤‰æ›ã‚’è©¦ã¿ã¾ã™ã€‚ [EXCEPTION] TypeError: å¼•æ•°ã«é…åˆ—ä»¥å¤–ã®(æš—é»™ã®åž‹å¤‰æ›ãŒè¡Œãˆãªã„)ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’æŒ‡å®šã—ãŸå ´åˆã«ç™ºç”Ÿã—ã¾ã™ã€‚ ä¾‹ p [1,2,3].zip([
repon 2015/06/18
array

ruby
ãƒªãƒ³ã‚¯
ç©ºã®ï¼’æ¬¡å…ƒé…åˆ—åˆæœŸåŒ– - Qiita
Register as a new user and use Qiita more conveniently You get articles that match your needsYou can efficiently read back useful informationYou can use dark themeWhat you can do with signing up
repon 2015/06/17
array

ruby
ãƒªãƒ³ã‚¯
Array.prototype.reduce() - JavaScript | MDN
This feature is well established and works across many devices and browser versions. Itâ€™s been available across browsers since July 2015. Learn moreSee full compatibilityReport feedback reduce() ã¯ Array ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã®ãƒ¡ã‚½ãƒƒãƒ‰ã§ã€é…åˆ—ã®ãã‚Œãžã‚Œã®è¦ç´ ã«å¯¾ã—ã¦ã€ãƒ¦ãƒ¼ã‚¶ãƒ¼ãŒæä¾›ã—ãŸã€Œç¸®å°ã€ã‚³ãƒ¼ãƒ«ãƒãƒƒã‚¯é–¢æ•°ã‚’å‘¼ã³å‡ºã—ã¾ã™ã€‚ãã®éš›ã€ç›´å‰ã®è¦ç´ ã®è¨ˆç®—çµæžœã®è¿”å€¤ã‚’æ¸¡ã—ã¾ã™ã€‚é…åˆ—ã®ã™ã¹ã¦ã®è¦ç´ ã«å¯¾ã—ã¦ã€Œç¸®å°ã€ã‚³ãƒ¼ãƒ«ãƒãƒƒã‚¯é–¢æ•°ã‚’å®Ÿè¡Œã—ãŸæœ€çµ‚çµæžœã¯ã€å˜ä¸€ã®å€¤ã¨ãªã‚Šã¾ã™ã€‚ ã‚³ãƒ¼ãƒ«ãƒãƒƒã‚¯ã®åˆå›žå®Ÿè¡Œæ™‚ã«ã¯ã€Œç›´å‰ã®è¨ˆç®—ã®è¿”å€¤ã€ã¯å˜åœ¨ã—ã¾ã›ã‚“ã€‚ åˆæœŸå€¤ãŒä¸Žãˆã‚‰ãˆãŸå ´åˆã¯ã€ä»£ã‚ã‚Šã«ä½¿ç”¨ã•ã‚Œã‚‹ã“ã¨ãŒã‚ã‚Šã¾ã™ã€‚ ãã†ã§ãª
repon 2015/03/11
ie8ã§ã¯ä½¿ãˆãªã„ã®ã‹

javascript

array
ãƒªãƒ³ã‚¯
JavaScriptã§é…åˆ—ã®è¦ç´ ã®é‡è¤‡ã‚’å–ã‚Šé™¤ãæ–¹æ³•Arrayã«uniqãƒ¡ã‚½ãƒƒãƒ‰ã‚’è¿½åŠ - memo.yomukaku.net
Rubyã«ã¯Array#uniqãƒ¡ã‚½ãƒƒãƒ‰ãŒã‚ã‚Šã€é…åˆ—ã‹ã‚‰é‡è¤‡ã™ã‚‹è¦ç´ ã‚’ç°¡å˜ã«å–ã‚Šé™¤ãã“ã¨ãŒã§ãã¾ã™ã€‚ JavaScriptã®Arrayã«ã¯ã€rubyã®ã‚ˆã†ã«é…åˆ—è¦ç´ ã®é‡è¤‡ã‚’å–ã‚Šé™¤ããƒ¡ã‚½ãƒƒãƒ‰ã¯ã‚ã‚Šã¾ã›ã‚“ã€‚ ãã“ã§ã€JavaScriptã®Arrayã«RubyåŒæ§˜ã«uniqãƒ¡ã‚½ãƒƒãƒ‰ã‚’è¿½åŠ ã—ã¾ã™ã€‚Arrayã®ãƒ—ãƒãƒˆã‚¿ã‚¤ãƒ—ã«uniqãƒ¡ã‚½ãƒƒãƒ‰ã‚’è¿½åŠ ã™ã‚‹ã“ã¨ã§å®Ÿç¾ã—ã¾ã™ã€‚ ä»¥ä¸‹ã®ã‚ˆã†ã«ã—ã¾ã™ã€‚ Array.prototype.uniq = function() { var o = {} , i , l = this.length , r = []; for (i = 0; i < l; i += 1) o[this[i]] = this[i]; for (i in o) r.push(o[i]); return r; } ã“ã‚Œã§Array#uniqãŒã§ãã¾ã—ãŸã€‚ æ¬¡ã®ã‚ˆã†ã«ä½¿ã„ã¾ã™ã€‚ var a = [
repon 2013/07/26
javascript

array

tips
ãƒªãƒ³ã‚¯
JavaScriptã®ä½¿ãˆã‚‹å°æŠ€ã§ã™ã€‚: é…åˆ—ã‹ã‚‰ã‚ã‚‹è¦ç´ ã‚’å‰Šé™¤ã™ã‚‹
Javascriptã§Array.deleteã£ã¦æŽ¢ã—ã¦ã‚‚ãªã„ã®ã§ã€ã¡ã‚‡ã£ã¨é€”æ–¹ã«ãã‚Œã¡ã‚ƒã†ã‘ã©ã€ spliceã‚’ä½¿ãˆã°ç°¡å˜ã«é…åˆ—ã‹ã‚‰è¦ç´ ã‚’å‰Šé™¤ã§ãã¾ã™ã€‚ ï¼ˆç½®æ›ã™ã‚‹ãƒ¡ã‚½ãƒƒãƒ‰ã‚’å‰Šé™¤ã«ä½¿ã†ãªã‚“ã¦æœ€åˆã¯ãªã‹ãªã‹æ°—ã¥ãã«ãã„ã§ã™ã‚ˆãã€‚ï¼‰ Array.splice(é–‹å§‹ç•ªå·,å‰Šé™¤ã™ã‚‹è¦ç´ æ•°); ä¾‹ï¼š myArray = new Array("red", "green", "blue", "yellow"); myArray.splice(1,2); çµæžœï¼š red,yellow æ³¨æ„ï¼š ã‚¤ãƒ³ãƒ‡ãƒƒã‚¯ã‚¹ç•ªå·ã¯0ã‹ã‚‰ã§ã™ã€‚ å¿œç”¨ï¼š ã“ã®ä¸ã§greenã ã‘ã‚’å‰Šé™¤ã—ãŸã„å ´åˆ myArray = new Array("red", "green", "blue", "yellow"); for(i = 0; i < myArray.length; i++){ if(myArray[i] == "green"){
repon 2013/07/02
javascript

array

tips
ãƒªãƒ³ã‚¯
Javascript/é…åˆ—æ“ä½œ - ä¿ºã®åŸºåœ°
å…ˆé ã‚’å‰Šé™¤ã—å…ˆé ã‚’å–å¾—ã™ã‚‹ var hoge = [1,2,3,4]; var piyo = hoge.shift(); //[2,3,4]; alert(piyo); //1 ç ´å£Šçš„ â–²Â â–¼ æœ«å°¾ã‚’å‰Šé™¤ã—æœ«å°¾ã‚’å–å¾—ã™ã‚‹ var hoge = [1,2,3,4]; var piyo = hoge.pop(); //[1,2,3] alert(piyo); //4 ç ´å£Šçš„ â–²Â â–¼ æœ«å°¾ã«è¿½åŠ ã™ã‚‹ var hoge = new Array(); hoge.push('aaa'); ç ´å£Šçš„ å®Ÿã¯ã“ã®ãƒ¡ã‚½ãƒƒãƒ‰ var hoge = []; hoge.push('aaa', 'bbb', 'ccc'); å¼•æ•°ã‚’ä½•å€‹ã‚‚ã¨ã£ã¦é€£ç¶šã§è¿½åŠ ã™ã‚‹ã“ã¨ãŒã§ãã‚‹ã€‚ â–²Â â–¼ é…åˆ—ã‚’çµåˆã™ã‚‹ï¼ˆç ´å£Šçš„ï¼‰ ã€Œæœ«å°¾ã«è¿½åŠ ã™ã‚‹ã€pushã¯å¼•æ•°ã‚’è¤‡æ•°å€‹ã¨ã‚Œã‚‹ã®ã§ã€ã“ã„ã¤ã‚’å¿œç”¨ã™ã‚‹ã¨ç ´å£Šçš„ã«é…åˆ—ã‚’çµåˆã™ã‚‹ã“ã¨ãŒã§ãã‚‹ var h
repon 2011/10/22
javascript

tips

hash

array
ãƒªãƒ³ã‚¯
é…åˆ—ã‹ã‚‰ãƒãƒƒã‚·ãƒ¥ã‚’ä½œæˆã™ã‚‹
ä½œæˆã•ã‚ŒãŸé…åˆ—ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‹ã‚‰ãƒãƒƒã‚·ãƒ¥ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ä½œæˆã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ç‰¹åˆ¥ãªãƒ¡ã‚½ãƒƒãƒ‰ãŒç”¨æ„ã•ã‚Œã¦ã„ã‚‹ã‚ã‘ã§ã¯ãªã„ã®ã§ã€åˆ¥ã®ç”¨é€”ã®ãƒ¡ã‚½ãƒƒãƒ‰ã‚’çµ„ã¿åˆã‚ã›ã‚‹ã“ã¨ã§é…åˆ—ã‹ã‚‰ãƒãƒƒã‚·ãƒ¥ã‚’ä½œæˆã—ã¾ã™ã€‚ã“ã“ã§ã¯ Ruby ã§é…åˆ—ã‹ã‚‰ãƒãƒƒã‚·ãƒ¥ã‚’ä½œæˆã™ã‚‹æ‰‹é †ã«ã¤ã„ã¦è§£èª¬ã—ã¾ã™ã€‚
repon 2011/08/05
ruby

hash

array
ãƒªãƒ³ã‚¯
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