To count text area characters with JavaScript, we use the value property.
For instance, we write
document.getElementById("textarea").onkeyup = (e) => {
console.log(e.target.value.length);
};
to select the text area with getElementById.
And then we set its onkeyup property to a function that logs the number of characters entered into the text area.
e.target.value has the input value string.
length has the number of characters.
