Conditional Statements in Go
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Conditional Statements are part of every programming language. They help us to decide which instruction is supposed to run when a certain condition is met. e.g. If I’m hungry then I’ll eat else I’ll wait. e.g. If the score is greater than 35%, you passed, else you failed.
If statement in Go
if condition/expression {
//instruction to be performed
}
The condition needs to be true to perform the given set of instructions.
package main
import "fmt"
func main(){
i := 10
if i % 2 == 0 {
fmt.Printf("%d is a even number", i)
}
}
Run this code in Go Playground
If-Else statement in Go
if condition/expression {
//instruction to be performed
} else {
//instruction to be performed
}
If the condition needs to be false perform instruction from the else block.
package main
import "fmt"
func main(){
i := 11
if i % 2 == 0 {
fmt.Printf("%d is a even number", i)
} else {
fmt.Printf("%d is a odd number", i)
}
}
Run this code in Go Playground
if-else-if ladder
We can use multiple conditional statements at once.
package main
import "fmt"
func main(){
i := -11
if i == 0 {
fmt.Println("It's zero")
} else if i < 0 {
fmt.Println("Negative number")
} else {
fmt.Println("Positive number")
}
}
Run this code in Go Playground
Short statement
package main
import "fmt"
func main() {
if j := 10; j%2 == 0 {
fmt.Println("Even number")
}
}
Run this code in Go Playground
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