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Jest · Matcher

toBeFalsy

toBeFalsy() checks that a value behaves as false in a Boolean context. It accepts any JavaScript falsy value, not only false.

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Syntax

expect(value).toBeFalsy()

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  • toBeTruthy
  • toBe
  • toBeNull
  • toBeUndefined
  • expect

Source: Expect · Jest. Checked 2026-11-03.