Premium
JAVASCRIPT Snippets.

Curated list of production-ready JAVASCRIPT scripts and coding solutions.

JAVASCRIPT

Vue 3 Dynamic Components for Tabbed Interfaces

Implement a flexible tabbed interface in Vue 3 using dynamic components and the `is` attribute, allowing you to switch between different components dynamically based on user selection.

View Snippet →
JAVASCRIPT

Vue 3 TransitionGroup for Animating List Item Changes

Animate the addition, removal, and reordering of list items in Vue 3 using the `<TransitionGroup>` component, creating smooth and engaging user interface interactions.

View Snippet →
JAVASCRIPT

Implementing a Simple Dark/Light Theme Switch with useContext

Create a global theme context in React using useContext to easily manage and switch between dark and light modes across your application without prop drilling.

View Snippet →
JAVASCRIPT

Auto-focusing an Input Field on Component Mount

Learn how to use the useRef and useEffect hooks in React to programmatically focus an input field or any DOM element when its component mounts.

View Snippet →
JAVASCRIPT

Preventing Unnecessary Rerenders with useCallback

Enhance React component performance by memoizing callback functions using useCallback, ensuring stable references for child components to prevent unnecessary re-renders.

View Snippet →
JAVASCRIPT

Detect if an Element is in Viewport with `useInView` Hook

Create a custom React hook `useInView` to efficiently determine if a given DOM element is currently within the user's viewport using `IntersectionObserver`, perfect for lazy loading and animations.

View Snippet →
JAVASCRIPT

Create a Flexible Countdown Timer Hook

Implement `useCountdown`, a versatile React hook for managing precise countdown timers, ideal for OTPs, event deadlines, or game mechanics. It handles seconds, minutes, and hours, stopping accurately at zero.

View Snippet →
JAVASCRIPT

Implement Global Keyboard Shortcuts with `useKeyboardShortcut`

Create a `useKeyboardShortcut` React hook to easily define and manage global keyboard combinations, enhancing user experience with efficient keyboard navigation and quick actions.

View Snippet →
JAVASCRIPT

Optimize `useEffect` with Deep Comparison for Dependencies

Use `useDeepCompareEffect` to prevent unnecessary re-runs of `useEffect` callbacks when dependencies are complex objects or arrays, by performing a deep equality check instead of a shallow one.

View Snippet →
JAVASCRIPT

Implement Keyboard Focus Trap for Modals and Dialogs

Create `useFocusTrap`, a critical React hook for accessibility that restricts keyboard focus within a specified container, preventing users from tabbing outside of modals or dialogs.

View Snippet →
JAVASCRIPT

Persist React State to Local Storage

Learn how to create a custom React hook, `useLocalStorage`, to effortlessly synchronize and persist your component's state with the browser's local storage.

View Snippet →
JAVASCRIPT

Respond to CSS Media Queries in React

Create a `useMediaQuery` React hook to declaratively respond to CSS media queries, enabling dynamic component rendering based on screen size or other viewport properties.

View Snippet →