2 ms·

253 == 253+1 ^^ even more clear. That's why Number.isSafeInteger(a) exists. Integers up to +/- 9007199254740991 (Number.MAX_SAFE_INTEGER) are fine.

2**53 == 2**53+1 ^^ even more clear. That's why Number.isSafeInteger(a) exists. Integers up to +/- 9007199254740991 (Number.MAX_SAFE_INTEGER) are fine.