Jest: Numbers Cheat Sheet

expect(2).toBeGreaterThan(1)
expect(1).toBeGreaterThanOrEqual(1)
expect(1).toBeLessThan(2)
expect(1).toBeLessThanOrEqual(1)
expect(0.2 + 0.1).toBeCloseTo(0.3, 5)
expect(NaN).toEqual(expect.any(Number))