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JAVASCRIPT Snippets.

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.

Smoothly Scrolling to a Specific DOM Element

Implement smooth, animated scrolling to any target DOM element on your page using native JavaScript, enhancing user navigation and experience.

Working with Custom Data Attributes (dataset API)

Learn to store and retrieve custom data directly on HTML elements using the `dataset` API, a clean and powerful way for DOM-driven logic.

Persisting State with useLocalStorage

Create a custom React hook `useLocalStorage` to effortlessly synchronize your component's state with the browser's Local Storage, ensuring data persistence across sessions.

Handling Clicks Outside with useOnClickOutside

Implement a reusable React hook `useOnClickOutside` to detect clicks that occur outside a specified component, perfect for closing modals, dropdowns, or sidebars.

Responding to Media Queries with useMediaQuery

Build a custom React hook `useMediaQuery` to programmatically detect and react to CSS media query changes, enabling dynamic responsive UI adjustments in your components.

Declarative setTimeout with useTimeout

Learn to create a `useTimeout` React hook for declarative, self-cleaning `setTimeout` operations, making it easy to schedule actions without memory leaks.

Efficient Debouncing for React Inputs with `useDebounce`

Learn to create a custom `useDebounce` React hook to delay state updates, optimizing performance for search inputs and preventing excessive function calls.

Synchronize React State with URL Query Parameters

Learn to build a `useQueryParamsSync` hook to read and write React state directly to URL query parameters, enabling shareable and bookmarkable filtered views.

Implement Data Polling with `usePolling` for Real-time Updates

Create a `usePolling` custom hook in React to periodically fetch data from an API, enabling real-time dashboards or background updates with customizable intervals.

Vue 3 Global Theme Management with Pinia

Implement a simple Pinia store in Vue 3 to manage and persist global application themes (light/dark mode) across components, ensuring reactivity.

Vue 3 Deep Component Communication with Provide/Inject

Share configuration or reactive state deep down your component tree in Vue 3 using the `provide` and `inject` API, avoiding excessive prop drilling.