Golang Interview Questions and Answers

Rvalue

• Shows on assignment operator's right side.
• Always assigned to lvalue.

Lvalue

• Shows on assignment operator's left side.
• Designated to a variable and not a constant.

The command line argument can be accessed using the os.Args variables.

For instance:
Package main
import (
  “fmt”
   “OS”
)
func main () {
   fmt.Println(len(os.Args), os.Args)
}

In Golang, the Cgo lets all the Go packages call a C code. With a Go source file written on some special features, the cgo makes an output in Go and C files which can be then combined into a single Go package bundle.

Concurrency potential that two or extra calculations manifest inside the identical time frame, and there is usually some kind of dependency between them. Parallelism capacity that two or extra calculations show up simultaneously.

In Golang, a shadowed variable is one which is declared in an inner scope having the same name and type as a variable in the outer scope. Here, the outer variable is mentioned after the inner variable is declared.

It refers to a string constant which is obtained by concatenating an arrangement of characters. String literals are of two types - Raw string literals and Interpreted string literals.

The Go memory allocator preserves a significant portion of virtual memory for allocations, which is local to the specific Go process.

To test on Golang, follow these steps:

• Create a file and end it with _test.go.
• This file should contain the TestXxx functions as described.
• Now, put this file in the same package as the one which is being tested.
• This file will now be included in the “go test” command.

"false" is the default value.