How to Fix declared but not used Error in Golang

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Go compiler raises the declared but not used error when you declare a variable but don’t use it in your code. It enforces a strict policy to ensure a clean and efficient code.

To fix the declared but not used error in Go, you can use the blank identifier(_). The blank identifier(_) temporarily suppresses the error (e.g., during development or debugging) as this tells the compiler that you’re intentionally ignoring the variable.

package main

import (
  "fmt"
)

func main() {
  kb := 21

  // To fix the error, use the blank identifier
  _ = kb

  fmt.Println("Hello, Gopher!")
}

Output

Hello, Gopher!

In this example, the variable a is declared but not used, causing the error. By assigning a to the blank identifier, we suppress the error. However, this is a temporary solution, and you should eventually use or remove the variable as needed.

That’s it.

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