How to get data from textarea in JS

We can easily get the textarea’s data by setting its ID and referring to its value with document.getElementById().

Example:

<textarea id="myText">Hello</textarea><br><br>
<button type="" onclick="runAlert()">Run the alert!</button>

<script>
    function runAlert() {
        var myText = document.getElementById('myText').value;

        alert(myText);
    }
</script>

Output:

Hello

Run the alert!