Michael vanaken

Last seen: 3년 초과 전 | 2017년부터 활동

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I need to have an error message for when the user inputs a letter into the a,b,c, or d inputs but im not sure how to do it, ive tried using isnan but could not figure out how to implement it into my code for it to work.
I need to have an error message for when the user inputs a letter into the a,b,c, or d inputs but im not sure how to do it, ive ...

6년 초과 전 | 답변 수: 1 | 0

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