Go If

Go If statement is used to conditionally execute a block of statements, based on the result of a boolean condition/expression.

In this tutorial, we will learn the syntax and usage of If statement in Go language.

Syntax

The syntax of Go If statement is

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 if condition {
     //code
 }

where the condition is a boolean expression or evaluates to a boolean value. If the expression evaluates to true, the code inside the if block executes, else the code in If block is not executed.

Examples

In the following example, we will print a message based on a condition.

example.go

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package main

import "fmt"

func main() {
	var a int = 10
	var b int = 20
	if a < b {
		fmt.Println("a is less than b")
	}
}

Output

a is less than b

In the following program, we will use Go If Statement and check if a number given in x is even.

example.go

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package main

import "fmt"

func main() {
	var x = 14
	if x%2 == 0 {
		fmt.Println("x is even.")
	}
	fmt.Println("Bye.")
}

Output

x is even.
Bye.

Conclusion

In this Go Tutorial, we learned about Go If statement, its syntax and its usage with the help of example programs.