Go if statement

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The if Statement

Use the if statement to specify a block of Go code to be executed if a condition is true.

Syntax

if condition {
  // code to be executed if condition is true
}

Note that if is in lowercase letters. Uppercase letters (If or IF) will generate an error.

In the example below, we test two values to find out if 20 is greater than 18. If the condition is true, print some text:

Example

package main
import ("fmt")

func main() {
  if 20 > 18 {
    fmt.Println("20 is greater than 18")
  }
}
Try it Yourself »

We can also test variables:

Example

package main
import ("fmt")

func main() {
  x:= 20
  y:= 18
  if x > y {
    fmt.Println("x is greater than y")
  }
}
Try it Yourself »

Example explained

In the example above we use two variables, x and y, to test whether x is greater than y (using the > operator). As x is 20, and y is 18, and we know that 20 is greater than 18, we print to the screen that "x is greater than y".

Go Exercises

Test Yourself With Exercises

Exercise:

Print "Hello World" if x is greater than y.

package main   
import ("fmt") 

func main() {
  var x = 50
  var y = 10
   x  y {
  fmt.Print("Hello World")
  }
}

Start the Exercise


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