The isNaN() function simply determines whether an incoming argument can be converted to a number, not whether it is equal or not. It returns false if it can be converted to a number, or true if it can not be converted to a number.Number. The Number.isNaN() method returns true if the incoming parameter is strictly equal to NaN, that is, if the value is Nan; otherwise, it returns false
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence