# Suggest using the built-in equality matchers (`prefer-equality-matcher`) Jest has built-in matchers for expecting equality which allow for more readable tests and error messages if an expectation fails. ## Rule details This rule checks for _strict_ equality checks (`===` & `!==`) in tests that could be replaced with one of the following built-in equality matchers: - `toBe` - `toEqual` - `toStrictEqual` Examples of **incorrect** code for this rule: ```js expect(x === 5).toBe(true); expect(name === 'Carl').not.toEqual(true); expect(myObj !== thatObj).toStrictEqual(true); ``` Examples of **correct** code for this rule: ```js expect(x).toBe(5); expect(name).not.toEqual('Carl'); expect(myObj).toStrictEqual(thatObj); ```