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MatchersBuiltin.toContain method | bun:test module | Bun

MatchersBuiltin.toContain method | bun:test module | BunBuildDocsReferenceGuidesBlogDiscord/bun:test/MatchersBuiltin/toContainMtoContain

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method

test.MatchersBuiltin.toContaintoContain(expected: T extends IterableU, any, any> ? U : T): void;Asserts that a value contains what is expected.

The value must be an array or iterable, which includes strings.

@param expectedthe expected value

expect([1, 2, 3]).toContain(1); expect(new Set([true])).toContain(true); expect("hello").toContain("o"); toContainX = T>(expected: NoInferX extends IterableU, any, any> ? U : X>): void;

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