The if statement is a fundamental part of Go programming that allows you to execute specific blocks of code based on whether a condition evaluates to true. This is particularly useful for decision-making processes within your programs.
Syntax
The syntax for an if statement in Go is:
if condition {
// Code to execute if the condition is true
}
Important Note: The keyword if must always be in lowercase. Writing it as If or IF will result in an error.
Example 1: Simple Comparison
Let’s check if one number is greater than another. If the condition is true, a message will be printed to the console.
package main
import ("fmt")
func main() {
if 50 > 30 {
fmt.Println("50 is greater than 30")
}
}
Example 2: Testing with Variables
You can also use variables to test conditions. Below is an example using motorcycle brands to make it more engaging.
package main
import ("fmt")
func main() {
ducati := 50
yamaha := 30
if ducati > yamaha {
fmt.Println("Ducati is faster than Yamaha")
}
}
Explanation of Example 2
In this example, we declare two variables, ducati and yamaha, representing arbitrary values (e.g., speeds or ratings). The condition ducati > yamaha evaluates whether Ducati’s value is greater than Yamaha’s. Since 50 is greater than 30, the program prints “Ducati is faster than Yamaha” to the console.
