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Go Tutorial

Go is a statically typed, compiled programming language designed at Google by Robert Griesemer, Rob Pike, and Ken Thompson. Go is syntactically similar to C, but with memory safety, garbage collection, structural typing, and CSP-style concurrency. The language is often referred to as Golang because of its former domain name, golang.org, but the proper name is Go.

There are two major implementations:

  • Google's self-hosting "gc" compiler toolchain targeting multiple operating systems, and WebAssembly.
  • gofrontend, a frontend to other compilers, with the libgo library. With GCC the combination is gccgo; with LLVM the combination is gollvm.


Go's syntax includes changes from C aimed at keeping code concise and readable. A combined declaration/initialization operator was introduced that allows the programmer to write i := 3 or s := "Hello, world!", without specifying the types of variables used. This contrasts with C's int i = 3; and const char *s = "Hello, world!";. Semicolons still terminate statements; but are implicit when the end of a line occurs. Methods may return multiple values, and returning a result, err pair is the conventional way a method indicates an error to its caller in Go. Go adds literal syntaxes for initializing struct parameters by name and for initializing maps and slices. As an alternative to C's three-statement for loop, Go's range expressions allow concise iteration over arrays, slices, strings, maps, and channels.

Conclusion

In this page (written and validated by ) you learned about Go Tutorial . What's Next? If you are interested in completing Go tutorial, your next topic will be learning about: Go Download and Install.



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