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Using Conditionals

Using Conditionals

Understand conditionals in Go, including if/else and switch blocks.

We'll cover the following...

Go supports the following two types of conditionals:

  • The if/else blocks

  • The switch blocks

The standard if statement is similar to other languages with the addition of an optional init statement borrowed from the standard C-style for loop syntax.

The switch statements provide a sometimes-cleaner alternative to if. So, let's jump into the if conditional.

The if statements

The if statements start with a familiar format that is recognizable in most languages:

if [expression that evaluates to boolean] {
  ...
}

Here's a simple example:

Go (1.18.2)
x:=4
if x > 2 {
  fmt.Println("x is greater than 2")
}

The statements within {} in if will execute if x has a value greater than 2.

Unlike most languages, Go has the ability to execute a ...