Falsy

Overview

A type representing all the values that are considered falsy in JavaScript.

In JavaScript, falsy values are those that evaluate to false in Boolean context. This type includes:

• false : The Boolean false value.
• '' : An empty string.
• 0: The number zero.
• null: The null value representing the absence of any value.
• undefined: A value that indicates a variable has not been assigned a value.

This type can be useful for defining variables, parameters, or return types that should only accept or return falsy values.

Syntax

type Falsy = false | '' | 0 | null | undefined;