10 React Challenges: #4 Show an Alert Based on Input

Bit Ninja


Events make the core of interactivity in JavaScript, from listening to form inputs, scroll events to button clicks. The knowledge of handling events in JavaScript is essential.

In this React challenge, we will carry out a DOM action after an event is fired. This event is native to the input element in React, and we’ll be listening with the onChange form input event.

CodePen Final: https://codesandbox.io/s/n15z4oq24l
CodePen Starter: https://codesandbox.io/s/5wz2onjn4

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Duration: 00:04:13
Publisher: DigitalOcean
You can watch this video also at the source.