Premium
JAVASCRIPT Snippets.

Consuming Paginated API Data with JavaScript

Implement JavaScript logic to fetch and display data from paginated APIs, handling 'next' page tokens or offset/limit parameters effectively.

Building a Simple Reactive Global State Store in Vue 3

Implement a basic global state management solution in Vue 3 using the reactivity API (`reactive`) for sharing data across components without a dedicated library.

Reusable Vue 3 Composable for API Data Fetching

Create a custom Vue 3 composable (`useFetch`) to handle asynchronous data fetching, including loading, error, and data states, making API calls reusable and organized.

Programmatic Navigation and Route Guards with Vue Router 4

Learn to control navigation programmatically using `router.push()` and implement global `beforeEach` navigation guards in Vue Router 4 for authentication or page access control.

Managing Modals and Overlays with Vue 3 Teleport

Use Vue 3's <Teleport> component to render modal windows or notifications outside the component's DOM hierarchy, ensuring proper layering and avoiding CSS z-index issues.

Efficiently Managing Dynamic Components with keep-alive

Learn how to use Vue 3's <keep-alive> component to cache inactive dynamic components, preserving their state and avoiding re-renders for improved performance.

Reusable useEventListener Hook

Create a custom React hook `useEventListener` to easily attach and clean up event listeners to the window, document, or a specific DOM element, ensuring no memory leaks.

Optimizing Expensive Calculations with useMemo

Optimize React component performance by using `useMemo` to memoize the results of expensive calculations, preventing re-execution on every render when dependencies haven't changed.

Memoizing Callback Functions with useCallback

Improve React component performance by using `useCallback` to memoize function references, preventing unnecessary re-renders of child components that depend on those functions.

Storing Mutable Values with useRef (Non-DOM)

Utilize `useRef` in React to store mutable values that persist across component renders without triggering re-renders, ideal for managing non-DOM data like timer IDs or previous states.

Efficiently Adding Multiple DOM Elements with DocumentFragment

Learn to create and append multiple new DOM elements efficiently using DocumentFragment to minimize reflows and repaints, improving web performance.

Dynamically Loading External JavaScript or CSS Files

Learn to programmatically load external JavaScript scripts or CSS stylesheets into your web page, enabling on-demand resource loading for better performance.