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Falsy

Union type representing all falsy values in JavaScript. Includes all falsy values:

  • false (boolean false)
  • null (null value)
  • undefined (undefined value)
  • '' (empty string)
  • 0 (number zero, including -0 and +0)
  • 0n (BigInt zero)
  • NaN (Not a Number) - Note: NaN is of type number but falsy

Signature​

export type Falsy = false | null | undefined | '' | 0 | 0n | typeof NaN