In this episode, we're diving into how to build an auto-resizing <textarea>
in Vue, so the textarea smoothly expands as you type. We kick things off with a basic (but not-so-great) solution, showing how you can hook into all textareas on the page, add some event listeners, and use JavaScript to scale the height as the content grows. Along the way, we talk about a few challenges, like why box-sizing: border-box
is super important for proper sizing and avoiding weird UI glitches.
After seeing the initial approach, we move on to a neater Vue way: directly setting up an @input
event on the textarea to handle resizing. This is better, but still not super reusable – so the final step is to extract everything into a standalone, reusable Vue component. We show you how to pass props like name
, id
, and how to wire up v-model
correctly so you can use this component in your forms and still get two-way data binding.
By the end, you'll have a clean, drop-in Vue <textarea>
component that auto-resizes as users type, and you'll see how to make it work seamlessly with your app's data. You'll also pick up useful lessons about box-sizing
, handling events, and Vue component design. Basically, you'll never have squished textareas or annoying scrollbars again!