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JSON Schema ã‹ã‚‰ API 仕様㨠Go コードを自動ã§ç”Ÿæˆã™ã‚‹ – BOT エントリーã®è£å´ Part.1
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Using Functions Inside Go Templates - Calhoun.io
Using Functions Inside Go Templates In this tutorial we are going to cover how to use template functions like and, eq, and index to add some basic logic to our templates. Once we have a pretty good understanding of how to use these functions we will explore how to go about adding some custom functions to our templates and using them. This is part three of a four part series introducing the html/te
Go pprof 入門編 (CPU Profile ã¨ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ãƒ„ール)
ã“ã®ã‚¨ãƒ³ãƒˆãƒªãƒ¼ã¯ã€ KLab Advent Calendar 2015 ã®17日目ã®è¨˜äº‹ã§ã™ã€‚ pprof 㯠Go ã®æ¨™æº–ライブラリã«ã‚るプãƒãƒ•ã‚¡ã‚¤ãƒ©ã§ã™ã€‚ CPUを使用ã—ã¦ã„る部分を見ã¤ã‘ã‚‹ã ã‘ã§ãªãã€CPUを使ã£ã¦ãªã„ã®ã«ãƒ¬ã‚¤ãƒ†ãƒ³ã‚·ãŒæ‚ªåŒ–ã™ã‚‹ã‚±ãƒ¼ã‚¹ã‚„メモリリークを発見ã—ãŸã‚Šã€é•·æ™‚間安定ã—ã¦å‹•ãサーãƒãƒ¼ãƒ—ãƒã‚°ãƒ©ãƒ を開発ã™ã‚‹ã®ã«ã¨ã¦ã‚‚便利ã§ã™ã€‚ 今日ã‹ã‚‰3日間ã®é€£è¼‰ã§ã“ã® pprof ã®ä½¿ã„方や仕組ã¿ã«ã¤ã„ã¦è¦‹ã¦è¡Œãã¾ã™ã€‚最åˆã¯ä¸€ç•ªåŸºæœ¬ã¨ãªã‚‹ CPU プãƒãƒ•ã‚¡ã‚¤ãƒ«ã®å–得方法ã¨ã€ go tool pprof ã®ä½¿ã„方を説明ã—ã¾ã™ã€‚ Note: Macã§ã®æ³¨æ„点 Mac OS X ã® Mavericks 以å‰ã¯ã€ Go ã® CPUProfiler ãŒåˆ©ç”¨ã—ã¦ã„ã‚‹ SIGPROF シグナルã«å•é¡ŒãŒã‚り〠CPU プãƒãƒ•ã‚¡ã‚¤ãƒ«ã‚’å–ã‚‹ãŸã‚ã«ã‚«ãƒ¼ãƒãƒ«ã«ãƒ‘ッãƒã‚’当ã¦ã‚‹å¿…è¦ãŒã‚ã‚Šã¾ã—ãŸã€‚ ã“ã®å•é¡Œã¯ E
Peter Bourgon · Context
2016 07 11 When it’s released later this month, Go 1.7 will move the x/net/context package to the stdlib, as plain old context. It also attaches a context object to net/http.Requests, and gives you a few helper methods. Dedicated Gophers are probably already familiar with the great introductory blog article by Sameer Ajmani, Go Concurrency Patterns: Context, published all the way back in 2014. If
Go1.7ã®contextパッケージ
Go1.7ã§ã¯golang.org/x/net/contextãŒcontextパッケージã¨ã—ã¦æ¨™æº–パッケージã«ä»²é–“入りã™ã‚‹ï¼Žãã—ã¦ã„ãã¤ã‹ã®æ¨™æº–パッケージã§ã¯contextパッケージを使ã£ãŸãƒ¡ã‚½ãƒƒãƒ‰/関数も新ãŸã«ç™»å ´ã™ã‚‹ï¼Žcontextパッケージã¯ä»Šå¾Œã•ã‚‰ã«é‡è¦ãªï¼ŒGopherã¯æ™®é€šã«æ‰±ã†ã¹ã，パッケージã«ãªã‚‹ã¨è€ƒãˆã‚‰ã‚Œã‚‹ï¼Žæœ¬è¨˜äº‹ã§ã¯ãã‚‚ãã‚‚contextパッケージã¨ã¯ä½•ã‹ï¼Ÿãªãœç™»å ´ã—ãŸã®ã‹ï¼Ÿãªãœé‡è¦ãªã®ã‹ï¼Ÿã©ã®ã‚ˆã†ã«ä½¿ã†ã¹ãã‹ï¼Ÿã«ã¤ã„ã¦ã¾ã¨ã‚る． contextパッケージãŒåˆã‚ã¦ç´¹ä»‹ã•ã‚ŒãŸã®ã¯2014å¹´ã®The Go Blogã®è¨˜äº‹ “Go Concurrency Patterns: Contextâ€ã§ã‚る．ã“ã®è¨˜äº‹ã§ã¯ãªãœGoogleãŒcontextパッケージを開発ã—ãŸã®ã‹ï¼Œã©ã®ã‚ˆã†ã«ä½¿ã†ã®ã‹å…·ä½“çš„ãªæ¤œç´¢ã‚¿ã‚¹ã‚¯ã‚’例ã«è§£èª¬ã•ã‚Œã¦ã„る．ã¾ã èªã‚“ã ã“ã¨ãŒãªã„人ã¯ãã¡ã‚‰ã‚’å…ˆã«èªã‚€ã¨è‰¯ã„． co
gae/g unit testing - Qiita
golangã«ã¯go testã¨ã„ã†unit test用ã®æ©Ÿèƒ½ãŒã‚ã‚Šã¾ã™ã€‚ testã‚’è¡Œã†ãŸã‚ã® [testing] (http://golang.org/pkg/testing/) package ã‚‚ã‚ã‚Šã¾ã™ã€‚ ã—ã‹ã—ã€gae/gã§ã¯ã€appengine固有ã®éƒ¨åˆ†ãŒå‹•ã‹ãªã„ãŸã‚利用ã§ãã¾ã›ã‚“ã§ã—ãŸã€‚ ãã“を解決ã™ã‚‹ãŸã‚ã«ä»¥ä¸‹ã®libraryãªã©ã‚‚ã‚ã£ãŸã®ã ã‘ã©ã€ gae 1.8.6ã§ã¤ã„ã«gae/gã§ã‚‚unit testãŒã§ãるよã†ã«ãªã‚Šã¾ã—ãŸï¼ [Local Unit Testing for Go] (https://developers.google.com/appengine/docs/go/tools/localunittesting) gae/g unit testã§é‡è¦ãªã®ã¯ã€ä»¥ä¸‹ã®3ã¤ã§ã™ã€‚ goapp test appengine/aetest testing ã“ã®3ã¤ã‚’
Go, Open Source, Community - The Go Programming Language
Russ Cox 8 July 2015 Welcome [This is the text of my opening keynote at Gophercon 2015. The video is available here.] Thank you all for traveling to Denver to be here, and thank you to everyone watching on video. If this is your first Gophercon, welcome. If you were here last year, welcome back. Thank you to the organizers for all the work it takes to make a conference like this happen. I am thril
Big Sky :: golang ã® sync パッケージã®ä½¿ã„æ–¹
golang ã¨è¨€ãˆã°éžåŒæœŸã«ç‰¹åŒ–ã—ãŸè¨€èªžã§ã™ãŒã€æ…£ã‚Œãªã„内ã¯ç°¡å˜ãªéžåŒæœŸã—ã‹ä½¿ãˆã¾ã›ã‚“。ã—ã‹ã— sync パッケージを知る事ã§ã‚‚ã£ã¨ã‚«ã‚¸ãƒ¥ã‚¢ãƒ«ã«ã€ã‹ã¤ç¢ºå®ŸãªéžåŒæœŸå‡¦ç†ã‚’è¡Œã†äº‹ãŒå‡ºæ¥ã‚‹æ§˜ã«ãªã‚Šã¾ã™ã€‚ 今日ã¯ãん㪠sync パッケージã«ã¤ã„ã¦èª¬æ˜Žã—ã¦ã¿ãŸã„ã¨æ€ã„ã¾ã™ã€‚ sync.Mutex ã”å˜ã˜ sync.Mutex ã§ã™ã€‚皆ã•ã‚“ãŒä¸€ç•ªä½¿ã†æŽ’他制御ã ã¨æ€ã„ã¾ã™ã€‚ package main import ( "fmt" "runtime" "sync" "time" ) func parallel(wg *sync.WaitGroup) { fmt.Println("åš") time.Sleep(100 * time.Millisecond) fmt.Println("多") time.Sleep(100 * time.Millisecond) fmt.Println("ã®") time.
Effective Go 野良翻訳（１） - hidemonã®ãƒ–ãƒã‚°
Effective GoãŒé¢ç™½ã„ã®ã§å‹‰å¼·ã®ãŸã‚翻訳ã—ã¦ã¿ã‚‹ã€‚æ„外ã«é•·ã„ã®ã§ã¡ã‚‡ã£ã¨ã¥ã¤ã€‚ ã¯ã˜ã‚ã« Go ã¯æ–°ã—ã„言語ã 。Go ã¯æ—¢å˜è¨€èªžã‹ã‚‰ã‚¢ã‚¤ãƒ‡ã‚£ã‚¢ã‚’借用ã—ã¦ã„ã‚‹ãŒã€å¤‰ã‚ã£ãŸã¨ã“ã‚ã‚‚ã‚ã‚‹ã®ã§ã€å®Ÿéš›ã®Goプãƒã‚°ãƒ©ãƒ ã¯ã€Goã®è¦ªæˆšè¨€èªžã§æ›¸ã‹ã‚ŒãŸãƒ—ãƒã‚°ãƒ©ãƒ ã¨ç•°ãªã‚‹ç‰¹å¾´ã‚’æŒã¤ã“ã¨ã«ãªã‚‹ã€‚C++ã‚„Javaã§æ›¸ã‹ã‚ŒãŸãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ã€å˜ã«Goã«æ›¸ãç›´ã™ã ã‘ã§ã¯ãªã‹ãªã‹è‰¯ã„プãƒã‚°ãƒ©ãƒ ã«ãªã‚‰ãªã„。Javaプãƒã‚°ãƒ©ãƒ ã¯Javaã§æ›¸ã‹ã‚Œã¦ã„ã‚‹ã®ã§ã‚ã£ã¦ã€Goã§æ›¸ã‹ã‚Œã¦ã„ã‚‹ã‚ã‘ã§ã¯ãªã„ã‹ã‚‰ã 。逆ã«ã€Goçš„ãªè¦³ç‚¹ã‹ã‚‰å•é¡Œã‚’考ãˆã‚‹ã¨ã€åŠ¹çŽ‡çš„ã ãŒä»–ã®è¨€èªžã§æ›¸ã„ãŸã‚‚ã®ã¨ã¯å…¨ãç•°ãªã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ ã«ãªã‚‹ã€‚言ã„æ›ãˆã‚Œã°ã€ã‚ˆã„Goプãƒã‚°ãƒ©ãƒ を書ãã«ã¯Goã®ç‰¹å¾´ã¨å®šåž‹çš„ãªæ›¸ã方をよãç†è§£ã—ã¦ãŠãå¿…è¦ãŒã‚ã‚‹ã¨ã„ã†ã“ã¨ã 。ã•ã‚‰ã«ã€Goã§ç”¨ã„るプãƒã‚°ãƒ©ãƒ 上ã®æ…£ç¿’ã€ãŸã¨ãˆã°åå‰ã®ä»˜ã‘方やフォーマットã€ãƒ—ãƒã‚°ãƒ©ãƒ ã®æ§‹æˆã‚’ç†è§£ã—ã¦ãŠãã“ã¨ã‚‚é‡
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