An introduction to_golang.avi

An introduction to_golang.avi

• 1.
  An Introduction toGolang SeongJae Park <sj38.park@gmail.com>
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  This work bySeongJae Park is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons. org/licenses/by-sa/3.0/.
• 3.
  These slides werepresented during 16th TechTalk@Pangyo (https://www.facebook.com/events/1674282256125660/1674377356116150/)
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  Nice To MeetYou SeongJae Park sj38.park@gmail.com golang newbie programmer
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  Disclaimer I am notprofessional Gopher I respect other languages
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  Golang: Programming Language ●“Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.”, http://golang.org http://blog.golang.org/5years/gophers5th.jpg
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  Why They AreDeveloping Golang? ● So many pains without perfect solution in currently available system languages ○ Computers are being faster, but development speed is not ○ Dependency management is hard; It makes build task slower ○ Dynamically typed languages are dangerous and slow ○ Garbage collection is not supported well ○ Number of cores per computer is growing
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  Why They AreDeveloping Golang? ● So many pains without perfect solution in currently available system languages ○ Computers are being faster, but development speed is not ○ Dependency management is hard; It makes build task slower ○ Dynamically typed languages are dangerous and slow ○ Garbage collection is not supported well ○ Number of cores per computer is growing ● Sometimes, restarting is the solution ○ Use package concept for simpler dependency management ○ Typed language with syntax that is easy to type like dynamically typed languages ○ Garbage collection based (garbage collection optimization is going on) ○ CSP based concurrency support
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  Live Coding Now... Iwill program a web server now, at here The program is inspired from the outyet(https://github.com/golang/example/tree/master/outyet)
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  Live Coding Now... ●Now, you understand… ○ Package system (helps dependency management) ○ Function (Consistent syntax) ○ Variable declaration with explicit / implicit type declaration https://github.com/sjp38/techtalk_outyet/blob/ebd4f1f70a47aacb18d92fe1db4f407eac7980d5/main.go
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  Live Coding Now... ●Now, you understand… ○ Package system (helps dependency management) ○ Function (Consistent syntax) ○ Variable declaration with explicit / implicit type declaration ○ Struct, type, method, and interface (Composition, not inheritance) https://github.com/sjp38/techtalk_outyet/blob/e03ce235be9ef99e46297f53139189a9b76e391b/main.go
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  Live Coding Now... ●Now, you understand… ○ Package system (helps dependency management) ○ Function (Consistent syntax) ○ Variable declaration with explicit / implicit type declaration ○ Struct, type, method, and interface (Composition, not inheritance) ○ Concurrency using goroutine (Not thread, not co-routine) https://github.com/sjp38/techtalk_outyet/blob/d6d0d7ed1503a1697356cee54b503b47462c9398/main.go
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  Live Coding Now... ●Now, you understand… ○ Package system (helps dependency management) ○ Function (Consistent syntax) ○ Variable declaration with explicit / implicit type declaration ○ Struct, type, method, and interface (Composition, not inheritance) ○ Concurrency using goroutine (Not thread, not co-routine) ○ Communication between goroutine using channel https://github.com/sjp38/techtalk_outyet/blob/8248c6fd2bc524e991fa18448ca99bb30d288b18/main.go
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  What Makes GolangSo Special on Multicore? I will explain about that with Dave Chenny’s OSCON’15 presentation (not mine) http://cdn.oreillystatic.com/en/assets/1/event/129/High%20performance%20servers%20without%20the% 20event%20loop%20Presentation.pdf
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  Thank You http://jeancharpentier.files.wordpress.com/2012/02/capture-plein-c3a9cran-01022012-230955.jpg