HTML Character Form

Question

I have this text area / form:

<div><textarea name="subject" rows="3" cols="60" placeholder="Please Enter Your Subject..." required="true"></textarea></div>

And obviously if the user types into the text area: su/bject Then su\bject is shown.

Is there a HTML way to make sure no '\' or any other characters apart from Aa - Zz are taken from the form?

Thanks in advance

Answer 1

When submitting, you can catch the result without any unwanted chars by doing this:

yourTextArea.value = yourTextArea.value.replace( /[^a-zA-Z]/g , '');

Or if you want to strip them right on key press, then modify your text area like this:

<textarea onkeyup="this.value = this.value.replace( /[^a-zA-Z]/g, '');" name="subject" rows="3" cols="60" placeholder="Please Enter Your Subject..." required="true"></textarea>