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Perlã«é–¢ã™ã‚‹niwatakoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (5)

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niwatako 2017/07/19
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Perl
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niwatako 2017/04/06
Perl
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perlã§ãƒãƒƒã‚·ãƒ¥ã¨ã‹ã®ã‚«ãƒƒã‚³ã®å‰ã«ä»˜ã„ã¦ã‚‹ãƒ—ãƒ©ã‚¹ã®æ„å‘³ - æ–°ã ã‚‹ã‚ãè·¡åœ°
{}ã®å‰ã«ãƒ—ãƒ©ã‚¹ãŒä»˜ã„ã¦ã€+{}ã¨ã‹ãªã£ã¦ã‚‹ã®ã‚’ã‚ˆãè¦‹ã‚‹ã‘ã©ã€ã‚„ã£ã¨ã“ã‚Œã®æ„å‘³ãŒåˆ†ã‹ã£ãŸã®ã§ãƒ¡ãƒ¢ã€‚ ã“ã®ã‚«ãƒƒã‚³ã¯ãƒãƒƒã‚·ãƒ¥ä»¥å¤–ã«ã‚‚ä½¿ã‚ã‚Œã‚‹ã‹ã‚‰ã€ã€Œã“ã‚Œã¯ãƒãƒƒã‚·ãƒ¥ãƒªãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ã§ã™ã‚ˆã€ã¨æ˜Žç¤ºã™ã‚‹ãŸã‚ã®ã‚‚ã®ã€‚ use strict; use warnings; use Data::Dumper; local $\ = "\n"; sub p { print Dumper shift; } sub hashref_ng { { @_ } } sub hashref_ok { +{ @_ } } my $ng = hashref_ng(1,2,3,4); my $ok = hashref_ok(1,2,3,4); p $ng; p $ok; å®Ÿè¡Œçµæžœ % perl hashref.pl $VAR1 = 4; $VAR1 = { '1' => 2, '3' => 4 }; ã“ã‚“ãªå¸¸è˜ã‚‚çŸ¥ã‚‰ãšã«ãŠã‚Šã¾ã™ã‚ˆ
niwatako 2017/04/06
Perl
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Defined-oræ¼”ç®—åã€Œ//ã€ - Perlå…¥é–€ã‚¼ãƒŸ
Perl â€º æ¼”ç®—å â€º here Perl5.10ã‹ã‚‰ã¯ã€ã¨ã¦ã‚‚ä¾¿åˆ©ãªDefined-oræ¼”ç®—åã€Œ//ã€ãŒå°Žå…¥ã•ã‚Œã¾ã—ãŸã€‚ã‚¹ãƒ©ãƒƒã‚·ãƒ¥ãŒäºŒã¤ç¶šãæ¼”ç®—åã§ã™ã€‚ã¨ã£ã¦ã‚‚æ¤œç´¢ã—ã«ãã„ã®ã§ã€æ—©ã‚ã«è¦šãˆã¦ãŠãã®ãŒã„ã„ã¨æ€ã„ã¾ã™ã€‚è¿‘å¹´ã®æ©Ÿèƒ½è¿½åŠ ã§ã¯ã€åƒ•çš„ã«ã¯ä¸€ç•ªãŠå‹§ã‚ã®æ©Ÿèƒ½ã§ã™ãã€‚ # Defined-oræ¼”ç®—å // Defined-oræ¼”ç®—åã¯ã€å·¦è¾ºãŒå®šç¾©ã•ã‚Œã¦ã„ã‚‹å ´åˆã¯ã€å·¦è¾ºå€¤ã‚’è¿”å´ã—ã€æœªå®šç¾©ã®å ´åˆã¯å³è¾ºå€¤ã‚’è¿”ã™ã¨ã„ã†å‹•ä½œã‚’ã—ã¾ã™ã€‚ # å³è¾ºãŒä»£å…¥ã•ã‚Œã‚‹ my $value = undef // 'default'; # 'default' # å·¦è¾ºãŒä»£å…¥ã•ã‚Œã‚‹ my $value = 0 // 'default'; # 0 my $value = '' // 'default'; # '' my $value = 'foo' // 'default'; # 'foo' ã“ã‚Œã¯ã€å€¤ãŒä¸Žãˆã‚‰ã‚Œãªã‹
niwatako 2017/04/06
Perl
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YAP(achimon)C::Asia Hachioji 2016 mid in Shinagawa. 2016/7/2(sat),3(sun)
YAP(achimon)C::Asia Hachioji 2016 mid in Shinagawa ãŒé–‹å‚¬ã•ã‚Œã¾ã—ãŸï¼ 2016/7/2(åœŸ),3(æ—¥)ã€å“å·ã«ã¦YAP(achimon)C::Asia Hachioji 2016 mid in ShinagawaãŒé–‹å‚¬ã•ã‚Œã¾ã—ãŸï¼å‚åŠ ã„ãŸã ã„ãŸçš†ã•ã¾æœ¬å½“ã«ã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã—ãŸï¼ æœ¬ã‚¤ãƒ™ãƒ³ãƒˆã¯å…¨ä½“ã§250äººç¨‹åº¦ãŒå‚åŠ ã—ãŸæŠ€è¡“è€…å‘ã‘ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ã§ã‚ã‚Šã€äºŒæ—¥é–“4ãƒˆãƒ©ãƒƒã‚¯ã®ãƒˆãƒ¼ã‚¯æž ã§LTå«ã‚100ã‚’è¶…ãˆã‚‹å¤šå½©ãªãƒˆãƒ¼ã‚¯ãŒãŠã“ãªã‚ã‚Œã¾ã—ãŸã€‚ ä¾‹å¹´å¤šæ§˜ãªãƒˆãƒ¼ã‚¯ãŒè¡Œã‚ã‚Œã¦ã„ãŸYAPC::Asia TokyoãŒã€å°‘ãªãã¨ã‚‚ä»Šå¹´åº¦ã¯é–‹å‚¬ã•ã‚Œãªã„è¦‹é€šã—ã§ã™ã€‚ æœ¬ã‚¤ãƒ™ãƒ³ãƒˆã®ä¸»å‚¬è€…ã¯ã€æŠ€è¡“è€…ã«ã‚ˆã‚‹æŠ€è¡“è€…å‘ã‘ã®ãƒˆãƒ¼ã‚¯ãŒã§ãã‚‹ã‚¤ãƒ™ãƒ³ãƒˆãŒé€”åˆ‡ã‚Œã‚‹äº‹ãªãç¶šãäº‹ã‚’é¡˜ã„ã€ ä»Šå›žã®ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ã‚’ä¼ç”»ã€é–‹å‚¬ã‚’æ±ºã‚ã¾ã—ãŸã€‚ æœ¬ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ã®è©³ç´°ã¯ã€Œç›®æ¨™ã€ã‚’ã”è¦§ä¸‹ã•ã„ã€‚ ã©ã‚“
niwatako 2016/04/13
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