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Jest · Matcher

toContainEqual

toContainEqual checks that an array contains an item with matching structure and values. It compares fields recursively instead of requiring the same object reference.

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Syntax

expect(received).toContainEqual(item)

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  • toContain
  • toEqual
  • toStrictEqual
  • expect(value)

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