expect(value)

expect.extend(matchers)

expect.anything()

expect.any(constructor)

expect.arrayContaining(array)

expect.assertions(number)

expect.closeTo(number, numDigits?)

expect.hasAssertions()

expect.not.arrayContaining(array)

expect.not.objectContaining(object)

expect.not.stringContaining(string)

expect.not.stringMatching(string | regexp)

expect.objectContaining(object)

expect.stringContaining(string)

expect.stringMatching(string | regexp)

expect.addSnapshotSerializer(serializer)

.not

.resolves

.rejects

.toBe(value)

.toHaveBeenCalled()

.toHaveBeenCalledTimes(number)

.toHaveBeenCalledWith(arg1, arg2, ...)

.toHaveBeenLastCalledWith(arg1, arg2, ...)

.toHaveBeenNthCalledWith(nthCall, arg1, arg2, ....)

.toHaveReturned()

.toHaveReturnedTimes(number)

.toHaveReturnedWith(value)

.toHaveLastReturnedWith(value)

.toHaveNthReturnedWith(nthCall, value)

.toHaveLength(number)

.toHaveProperty(keyPath, value?)

.toBeCloseTo(number, numDigits?)

.toBeDefined()

.toBeFalsy()

.toBeGreaterThan(number | bigint)

.toBeGreaterThanOrEqual(number | bigint)

.toBeLessThan(number | bigint)

.toBeLessThanOrEqual(number | bigint)

.toBeInstanceOf(Class)

.toBeNull()

.toBeTruthy()

.toBeUndefined()

.toBeNaN()

.toContain(item)

.toContainEqual(item)

.toEqual(value)

.toMatch(regexp | string)

.toMatchObject(object)

.toMatchSnapshot(propertyMatchers?, hint?)

.toMatchInlineSnapshot(propertyMatchers?, inlineSnapshot)

.toStrictEqual(value)

.toThrow(error?)

.toThrowErrorMatchingSnapshot(hint?)

.toThrowErrorMatchingInlineSnapshot(inlineSnapshot)

expect(typeof target).toBe("string")