Math.random(): random selection for a game, not a secret

Useful to know

Math.random() returns a pseudorandom number x, for which 0 ≤ x < 1. For conditional selection between six positions, Math.floor(Math.random() * 6) gives an index from 0 to 5. [1]

This is an example of an interface game, not a cryptographic use. MDN explicitly warns that Math.random is not suitable for security tasks. Do not generate passwords, recovery tokens, or keys with it. With such needs, use intended cryptographic means in the appropriate environment and a proper generation model.