how to require input number of charecters code example

Example 1: Validate length with html

<--html forms min. charcter-->
<input pattern=".{3,}"   required title="3 characters minimum">
<input pattern=".{5,10}" required title="5 to 10 characters">

Example 2: html5 input required length

<input pattern=".{3,}"   required title="3 characters minimum">
<input pattern=".{5,10}" required title="5 to 10 characters">