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Google GO

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Ajay Gahlot
Ajay Gahlot

The document discusses the Go programming language. It provides a history of Go, noting it was created by Rob Pike and Ken Thompson in 2008 and officially launched in 2012. It then provides an overview of Go, describing it as an open source language suitable for modern systems and large scale programming. The rest of the document details Go's features, syntax, standard types, tools, popular users, approach to concurrency, and future outlook. It concludes Go is an easy to learn language well suited to solving real world problems.

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Google GO (The Programming Language) By-Ajay Singh Computer Science(8th Sem)
HISTORY  Made by Rob Pike and Ken Thompson in 2008  Officially launched in 2012  GO 1.0 was the first version.  Recently GO 1.2 was launched on 1st Dec 2013.  Born out of a need for Ease of Programming combined with Type safety & Portability
BRIEF OVERVIEW  Open Source Language driven by a large Community  Suitable for Modern Systems and Large Scale programming  Go aims to combine the safety & performance of Statically typed compiled language with expressiveness & convenience of Dynamically typed interpreted language  Extension of file is .go (e.g- HelloWorld.go)
FEATURES Of GO  Easy to Learn  No Exception Handling  Compilation is Very Fast  No classes(Go is a Procedural Language)  Deployment is Easy  Easy Concurrency via Channels  Uses Garbage Collection  Uses Interfaces  Functions have multiple return statements  No overloading  No inheritance but embedding  No constructors only simple functions
SYNTAX OVERVIEW  Looks similar to C Language  End of line semicolon are Optional  Variable declaration is Optional  Variable name is followed by its type  Variables can also be declared by initialization
 Visibility of functions is controlled using Capitalization  If First letter of Function name is CAPITAL then it is publically available outside the package  If First letter of function name is small then it will be private
HelloWorld.go
Set Of STANDARD TYPES
Modern Standard Library & Frameworks Standard Library(Packages) Frameworks  Json,xml  Revel  net./http  Gorilla  Text/template and html/template  Web.go  Time  IO formatting  Images  And many more….
GO TOOLS!(Commands)  Go run hello.go [execution of program]  Go test [runs unit testing]  Go install [install local packages]  Go get [install external packages]  Go fmt [format the sources]  Go doc [source documentation]
USERS of GO  Google  Heroku  Mozilla  Cloudfare  Canonical  Bit.ly
CONCURRENCY  It talks about composition of independently executing processes  It is done with the help of Goroutines and Channels  Goroutine: is a light weighted function which behaves like a thread  Channel: helps in Synchronization and Communication between Goroutines  Upto thousands of Goroutines can execute simultaneously
Future Of GO  GO 1.2 was launched recently in Dec 2013  Currently Google is focusing on increasing the performance  Fixing of Bugs related to Garbage Collection and Bootstrapping is being done  GO 2.0 has not been started yet
Conclusion  Go has nothing cool/special  But it is a nice language  Easy to Learn  That will make you more Productive  And it is well suited to Real World Problems
 REFERENCE : http://golang.org  THANK YOU!

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Google GO

  • 1. Google GO (The Programming Language) By-Ajay Singh Computer Science(8th Sem)
  • 2. HISTORY  Made by Rob Pike and Ken Thompson in 2008  Officially launched in 2012  GO 1.0 was the first version.  Recently GO 1.2 was launched on 1st Dec 2013.  Born out of a need for Ease of Programming combined with Type safety & Portability
  • 3. BRIEF OVERVIEW  Open Source Language driven by a large Community  Suitable for Modern Systems and Large Scale programming  Go aims to combine the safety & performance of Statically typed compiled language with expressiveness & convenience of Dynamically typed interpreted language  Extension of file is .go (e.g- HelloWorld.go)
  • 4. FEATURES Of GO  Easy to Learn  No Exception Handling  Compilation is Very Fast  No classes(Go is a Procedural Language)  Deployment is Easy  Easy Concurrency via Channels  Uses Garbage Collection  Uses Interfaces  Functions have multiple return statements  No overloading  No inheritance but embedding  No constructors only simple functions
  • 5. SYNTAX OVERVIEW  Looks similar to C Language  End of line semicolon are Optional  Variable declaration is Optional  Variable name is followed by its type  Variables can also be declared by initialization
  • 6.  Visibility of functions is controlled using Capitalization  If First letter of Function name is CAPITAL then it is publically available outside the package  If First letter of function name is small then it will be private
  • 9. Modern Standard Library & Frameworks Standard Library(Packages) Frameworks  Json,xml  Revel  net./http  Gorilla  Text/template and html/template  Web.go  Time  IO formatting  Images  And many more….
  • 10. GO TOOLS!(Commands)  Go run hello.go [execution of program]  Go test [runs unit testing]  Go install [install local packages]  Go get [install external packages]  Go fmt [format the sources]  Go doc [source documentation]
  • 11. USERS of GO  Google  Heroku  Mozilla  Cloudfare  Canonical  Bit.ly
  • 12. CONCURRENCY  It talks about composition of independently executing processes  It is done with the help of Goroutines and Channels  Goroutine: is a light weighted function which behaves like a thread  Channel: helps in Synchronization and Communication between Goroutines  Upto thousands of Goroutines can execute simultaneously
  • 13. Future Of GO  GO 1.2 was launched recently in Dec 2013  Currently Google is focusing on increasing the performance  Fixing of Bugs related to Garbage Collection and Bootstrapping is being done  GO 2.0 has not been started yet
  • 14. Conclusion  Go has nothing cool/special  But it is a nice language  Easy to Learn  That will make you more Productive  And it is well suited to Real World Problems
  • 15.  REFERENCE : http://golang.org  THANK YOU!