To limit the number of characters (as UTF-16 code units to be specific) that can be added to an HTML
<input> element, you can simply add the
maxlength attribute on it (which is very well-supported across different browsers).
For example, to limit an
<input> element to a maximum of
10 characters you would do the following:
<input type="text" maxlength="10" />
It works the same way for any other
<input> element. For example, to limit the characters of an
<input type="email" /> element, you would add the
maxlength attribute like so:
<input type="email" maxlength="10" />
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