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Understanding useEffect vs. Class Component Lifecycle Methods in React Native
React Native, like React, allows developers to manage side effects in functional components using Hooks. The useEffect Hook is a powerful tool that replaces lifecycle methods traditionally used in class components. In this blog, we’ll explore the differences between useEffect and class component lifecycle methods in the context of React Native. 1️⃣ useEffect(() => {...}) (Runs on Every Render) Functional Component: useEffect(() => { console.log("Runs on every render"); }); Equivalent in Class Component: class MyComponent extends Component { componentDidMount() { console.log("Runs on mount"); } componentDidUpdate() { console.log("Runs on every update"); } }
React Native, like React, allows developers to manage side effects in functional components using Hooks. The useEffect Hook is a powerful tool that replaces lifecycle methods traditionally used in class components. In this blog, we’ll explore the differences between useEffect and class component lifecycle methods in the context of React Native.
1️⃣ useEffect(() => {...}) (Runs on Every Render)
Functional Component:
useEffect(() => {
console.log("Runs on every render");
});
Equivalent in Class Component:
class MyComponent extends Component {
componentDidMount() {
console.log("Runs on mount");
}
componentDidUpdate() {
console.log("Runs on every update");
}
}
