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Jest · Module

stringMatching

expect.stringMatching checks whether a received string matches a string or regular expression. Use it inside Jest matchers such as toEqual, arrayContaining, or objectContaining for flexible matching.

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Syntax

expect.stringMatching(string | regexp)

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  • expect.not.stringMatching
  • expect.arrayContaining
  • expect.objectContaining
  • toEqual
  • toHaveBeenCalledWith
  • toMatchObject

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