Combining useState and useEffect for Dynamic Interactions
Explore how to build dynamic React components by combining useState to manage internal state and useEffect to handle side effects such as fetching data and timing events. This lesson guides you through creating a real-time filtered search and includes exercises for timers and background color toggles.
We'll cover the following...
In real-world applications, components often need to manage their internal state and respond to external factors, such as user input, fetched data, or timers. By combining useState and useEffect, we can create fully interactive, dynamic components that manage both state and side effects seamlessly.
Building a dynamic search component
Let’s build a dynamic search component step by step, to appreciate how useState and useEffect work independently and then together to create a fully functional feature.
We need to build a dynamic search component that allows users to type a query into an input field and see a filtered list of items in real time. Additionally, the items should be fetched dynamically when the component loads, simulating a common feature in modern applications, such as product or user searches.
Step 1: Start with a static list
Let’s begin by rendering a static ...