babel/packages/babel-plugin-proposal-numeric-separator/test/fixtures/removal/numeric/exec.js

expect(1_000).toBe(1000);
expect(0xAE_BE_CE).toBe(0xAEBECE);
expect(0b1010_0001_1000_0101).toBe(0b1010000110000101);
expect(0o0_6_6_6).toBe(0o0666);