isBoolTruthy

Type guard that checks whether an Either from the boolean helpers is truthy.

Interactive example

Syntax

function isBoolTruthy<
	GenericInput extends unknown
>(
  input: GenericInput
): input is Extract<GenericInput, BoolTruthy>;

Parameters

• input: Result of E.bool, boolTruthy, etc.

Return value

true if the value is an BoolTruthy. Allows refining the type before manipulating the value.

See also

• whenIsBoolTruthy – Functional version.
• isBoolFalsy – Falsy counterpart.