Sometimes, we want to detect text area onchange event with JavaScript.

In this article, we’ll look at how to detect text area onchange event with JavaScript.

How to detect text area onchange event with JavaScript?

To detect text area onchange event with JavaScript, we listen for the input event.

For instance, we write

const area = container.querySelector("textarea");
area.addEventListener(
  "input",
  () => {
    // ...
  },
  false
);

to select the textarea element with querySelector.

Then we call addEventListener on the element with 'input' and a callback that runs when we change the textarea input value.

We call addEventListener to listen for the input event on the textarea.

Conclusion

To detect text area onchange event with JavaScript, we listen for the input event.