text area input type in html code example
Example 1: html set textarea value
// To set the textarea value, you must insert the TEXT into the element.
// javascript
var textarea = ``;
document.getElementById('my_textarea_id').textContent = 'foo'
// php
$value = 'foo';
$textarea = "";
echo $textarea;
Example 2: html input textarea
Check this:
https://codepen.io/DevLorenzo/pen/wvzNPKz