Premium
JAVASCRIPT Snippets.

Implement useAnimationFrame for Smooth Animations

Create a custom React hook, `useAnimationFrame`, to execute functions on each browser animation frame, enabling smooth, performant, and synchronized animations.

Manage Component Lifecycle for External Subscriptions

Create a custom React hook to simplify subscribing and unsubscribing from external data sources or events, ensuring proper cleanup on unmount.

React to Scroll Position with useScrollPosition Hook

Implement a custom React hook to track and react to the user's scroll position within a component or the window, enabling scroll-based UI effects and logic.

Proxy Third-Party API Requests from Server (Node.js)

Learn how to create a Node.js Express server proxy to securely fetch data from third-party APIs, avoiding CORS issues and protecting API keys.

Fetch All Pages from a Paginated API (JavaScript Async/Await)

Learn to efficiently retrieve all data from a paginated API endpoint using JavaScript's async/await, iterating through pages until all results are fetched.

Transform and Normalize API Response Data (JavaScript)

Learn to process raw API data in JavaScript, transforming it into a clean, normalized structure suitable for display or further application logic.

Client-Side API Response Caching with localStorage (JavaScript)

Boost performance by caching API responses in `localStorage` in JavaScript, reducing redundant network requests and improving user experience.

Dynamically Generate and Append a List of Elements

Learn how to dynamically create multiple HTML elements (like list items) and append them to an existing parent container using JavaScript.

Toggle Element Visibility with JavaScript and CSS Classes

Implement a straightforward show/hide mechanism for any HTML element by toggling a CSS class using JavaScript's classList API.

Smooth Scroll to an HTML Element Programmatically

Implement smooth programmatic scrolling to any target element on a webpage, significantly enhancing user navigation and overall experience.

Read, Set, and Remove Custom Data Attributes

Learn to effectively manipulate custom `data-*` attributes on HTML elements using JavaScript, enabling dynamic content and interactive behavior.

Custom React Hook for Data Fetching with Loading and Error States

Implement a custom React hook, `useFetch`, to handle asynchronous data fetching, including managing loading and error states, making API calls cleaner and reusable.