Question 1

Is this good enough for something like a raffle or picking a winner?

Accepted Answer

For everyday fairness (a raffle among friends, deciding who goes first, shuffling a small list) yes - it uses JavaScript's standard random number generator, which is not predictable by a casual observer. For anything with real money or legal stakes, use a purpose-built, audited random-number service instead.

Question 2

What happens if I ask for more unique numbers than exist in the range?

Accepted Answer

The count is capped at the size of the range - for example, asking for 20 non-repeating numbers between 1 and 5 gives you all 5, since there aren't 20 different numbers to give.

Question 3

Is a coin flip really 50/50 here?

Accepted Answer

Yes - each flip is an independent draw with an equal chance of either outcome, the same way each dice roll or number pick is independent of the others.

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Random Generator

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