isWrappedValue

The isWrappedValue() function is a type guard that checks whether a value is a WrappedValue created via wrapValue/toWrappedValue.

Interactive example

Syntax

function isWrappedValue<
	GenericInput extends unknown
>(
	input: GenericInput
): input is Extract<GenericInput, WrappedValue<any>>;

Parameters

• input : Potentially wrapped value to test.

Return value

A boolean, and a type narrowing to WrappedValue<...> when true.

See also

• wrapValue - Wraps a value
• toWrappedValue - Wraps if needed