I am trying to make a registration system and I am trying to code a system that understands if there are special characters(dot, numbers, semicolons, etc.).I am trying to use IndexOf() but it doesn’t work. How can I do this?
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I am trying to make a registration system and I am trying to code a system that understands if there are special characters(dot, numbers, semicolons, etc.).I am trying to use IndexOf() but it doesn’t work. How can I do this?