expect('foo').toBeTruthy() | Matches anything that an if statement treats as true (not false, 0, ”, null, undefined, NaN) |
expect('').toBeFalsy() | Matches anything that an if statement treats as false (false, 0, ”, null, undefined, NaN) |
expect(null).toBeNull() | Matches only null |
expect(undefined).toBeUndefined() | Matches only undefined |
expect(7).toBeDefined() | The opposite of toBeUndefined |
expect(true).toEqual(expect.any(Boolean)) | Matches true or false |