void

The void command evaluates its parameters but discards the result. It's useful when you want to execute a function or expression for its side effects without letting its return value overwrite an existing variable.

Syntax

void expression

Description

The void command takes an expression, evaluates it fully, and then discards the result.

In this language, many methods mutate the original value and also return a result. That means calling a method directly can unintentionally overwrite your variable if you're not careful.

Example of default behavior

myString = "HELLO WORLD"

myString.toLower()

log myString
// "hello world"

Here, calling toLower() modifies myString.

Preventing Overwrites with void

If you want to execute the method without changing the original variable, you can use void:

myString = "HELLO WORLD"

void myString.toLower()

log myString
// "HELLO WORLD"

The method is still evaluated, but its result is discarded and the original value remains unchanged.

Mutation from Methods

numbers = [3, 1, 2]

// Because .sort() mutates the value in place, this works
void numbers.sort()

log numbers
// [1, 2, 3]

Use Cases

• Preventing accidental overwrites of variables

• Running methods without mutating original data

• Executing side-effect-only functions

• Making it explicit that a return value is intentionally ignored

Notes

• void always evaluates the expression

• The result is discarded and not assigned anywhere

• It effectively preserves the original value when used with mutating methods

• Using void makes your intent clearer when ignoring results