Prevent user from typing in input at max value

Question

I\'d like the user to be blocked from typing more if the value is over 100. So far I have the following from reading different posts:

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Answer 1

It is bad UI to disable the input if a user inputs a bad value. I'm assuming you simply want to put a max value that the user cannot go over. If so, you can either clamp the value, or use the max attribute in your markup:

If you input an invalid value, the input will turn red, and you cannot submit the form.