Text Area maxlength not working

Question

I want to set maximum length to the textarea. I am using following code for the same,but it is not working,

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                <span>2021-01-18 02:30</span>
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<p>You need to put it into the HTML tag like this, make sure you have airquotes "".</p>

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<pre class="snippet-code-html lang-html prettyprint-override"><code><textarea maxlength="5">