Scalaプãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚¹ã‚¿ã‚¤ãƒ«é›† | Recruit Tech Blog
ã¯ã˜ã‚㫠人ã«ã‚ˆã£ã¦æ§˜ã€…ãªæ›¸ãæ–¹ãŒã§ãã¦ã—ã¾ã†ã®ãŒScala。 本記事ã§ã¯ã€éšŽä¹—を求ã‚ã‚‹fac関数を例ã«ã€ã„ãã¤ã‹ã®èˆˆå‘³æ·±ã„プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚¹ã‚¿ã‚¤ãƒ«ã‚’紹介ã—ã¾ã™ã€‚ 以下ã®ã‚³ãƒ¼ãƒ‰ã¯ã€REPLã§:pasteã™ã‚‹ã“ã¨ã§ã€ç°¡å˜ã«å‹•ä½œã‚’確èªã§ãã¾ã™ã€‚ 手続ãプãƒã‚°ãƒ©ãƒŸãƒ³ã‚° ç ´å£Šçš„æ“作をãŸã‚らã‚ãªã„男らã—ã„プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚¹ã‚¿ã‚¤ãƒ«ã€‚ def fac(n: Int) = { var result = 1 for (i <- 1 to n) { result *= i } result } å†å¸°ã§æ›¸ãより速ã„（ã¯ãšï¼‰ã§ã™ã€‚ 普通ã®å†å¸° åˆå¦è€…æ³£ã‹ã›ã®å†å¸°ã‚¹ã‚¿ã‚¤ãƒ«ã€‚ def fac(n: Int): Int = if (n == 0) 1 else n * fac(n - 1) // å†å¸°å‘¼ã³å‡ºã—ã®å¤–å´ã« * ã«ã‚ˆã‚‹æ¼”ç®—ãŒã‚ã‚‹ ã“ã®ã‚ˆã†ã«æ›¸ãã¨ã‚¹ã‚¿ãƒƒã‚¯ã‚’ã©ã‚“ã©ã‚“消費ã™ã‚‹ã®ã§ã€å¾Œè¿°ã™ã‚‹æœ«å°¾å†å¸°ã‚’使ã£ãŸã»ã†ãŒã„ã„ã§
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AWSã®ãƒªã‚½ãƒ¼ã‚¹æ§‹æˆã‚’Serverspecã®ã‚ˆã†ã«ãƒ†ã‚¹ãƒˆã§ãã‚‹ "awspec" ã‚’ã¤ãã‚Šã¾ã—ãŸã€‚ github.com 例ãˆã°EC2インスタンスã§ã‚ã‚Œã°ã€ä»¥ä¸‹ã®ã‚ˆã†ã«æ›¸ã‘ã¾ã™ã€‚ describe ec2('my-ec2') do it { should exist } it { should be_running } it { should_not be_stopped } its(:instance_id) { should eq 'i-ec12345a' } its(:private_ip_address) { should eq '10.0.1.1' } it { should have_security_group('my-security-group-name') } it { should belong_to_vpc('my-vpc') } it { should belon
プãƒã‚°ãƒ©ãƒžãƒ¼å¿—望ãªã‚‰è‹±èªžã‚’勉強ã—ã¦ä¸‹ã•ã„
ROBA @ãã‚ãã‚外ã«å‡ºã‚‹ @vjroba 誰も見ã¦ãªã„ã ã‚ã†ã‘ã©ãƒ—ãƒã‚°ãƒ©ãƒžãƒ¼ã‚’å¿—ã™çš†ã•ã‚“ã¸ãŠé¡˜ã„。英語を勉強ã—ã¦ä¸‹ã•ã„。å°ç²‹ãªã‚¸ãƒ§ãƒ¼ã‚¯ã‚’飛ã°ã›ãªãã¦ã‚‚ã„ã„ã‘ã©ã€ã‚³ãƒ¼ãƒ‰ã®ä¸ã§æ£ã—ã„文法ã€æ£ã—ã„å˜èªžã§å‘½åãŒå‡ºæ¥ã‚‹ç¨‹åº¦ã«ã¯å‹‰å¼·ã—ã¦ä¸‹ã•ã„。é©å½“ã«å˜èªžä¸¦ã¹ã‚‹ã ã‘ã˜ã‚ƒãƒ¡ãƒ³ãƒ†ã™ã‚‹äººãŒæ„味ãŒã‚ã‹ã‚‰ãªãã¦é を抱ãˆã¾ã™ã€‚ 2015-08-06 06:30:37 ROBA @ãã‚ãã‚外ã«å‡ºã‚‹ @vjroba メソッドåãŒé©å½“ãªãƒ—ãƒã‚°ãƒ©ãƒžãƒ¼ãŒå¤šã„ã§ã™ã€‚メソッドã¯å‘½ä»¤ã§ã™ã®ã§ã€å¿…ãšå‘½ä»¤å½¢ã§æ›¸ã„ã¦ãã ã•ã„（is〜ã¿ãŸã„ãªã®ã¯é™¤ã）。ä¸å¦ã§å‹‰å¼·ã—ãŸã¨æ€ã„ã¾ã™ãŒå‘½ä»¤å½¢ã¯ä¸»èªžã‚’å–り払ã£ã¦æ´»ç”¨ãªã—ã®å‹•è©žã§å§‹ã‚ã‚‹æ–‡ç« ã§ã™ã€‚ã“ã‚ŒãŒæ–‡ç« ã«ãªã£ã¦ãªã„人ãŒå¤šã„ã§ã™ã€‚èªã‚ã¾ã›ã‚“。勘å¼ã—ã¦ä¸‹ã•ã„。 2015-08-06 06:38:24 ROBA @ãã‚ãã‚外ã«å‡ºã‚‹ @vjroba å˜èªžã‚’並ã¹ã‚‹ã ã‘ã§ã¯æ–‡ç« ã«ãªã‚Šã¾ã›ã‚“。英語ã®æ–‡ç« ã¯ä¸»
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