Golang If with a short statement

There can be an initialization statement before the conditional expression. For example, assign a value to a variable.

You need to add a semicolon after the initialization statement, the format is as follows.

if init-statement; condition-expression {
	// do something
}

The var keyword is not supported in the initialization statement.

The following is a complete code example.

package main

import "fmt"

func main() {
	Abs := func(x int) int {
		if x < 0 {
			return -x
		}
		return x	
	}

	if a := Abs(); a > 5 {
        fmt.Println("The absolute value of -7 is greater than 5")
    }
}

Below is the program output:

The absolute value of -7 is greater than 5