The if Expression

The if expression can be used to conditionally run code. Like most programming languages, an if expression has a condition and a body:

let condition = true

if condition:
  echo this is the body

In this example, condition is truthy, so the body of the if expression runs the echo command. condition can be any truthy/falsey type including bool, string, and number.

Currently elif and else blocks are not supported. This will be added in the near future.

Like the name implies, if expressions are expressions, and can be used in conjunction with other expressions:

let x =
  if true:

The result of an if expression is the last expression in the body, in this case, 123. The body of an if expression is a special type of expression called a "block", which you can read more about here.