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JAVASCRIPT Snippets.

Extract All Data Attributes from an HTML Tag String

Learn to efficiently extract all `data-*` attributes and their values from an HTML tag string using a powerful JavaScript regex pattern for dynamic content processing.

Create a `useDebounce` Custom Hook in React

Learn to build a `useDebounce` custom React hook to delay executing a function until after a certain time, preventing excessive re-renders or API calls.

Safe `useLayoutEffect` for SSR/CSR with `useIsomorphicLayoutEffect`

Learn to use `useIsomorphicLayoutEffect`, a custom hook that conditionally uses `useLayoutEffect` or `useEffect` to safely handle DOM measurements in both client-side and server-side rendering.

Perform Asynchronous Data Fetching with `useEffect` and `useState`

Master the fundamental React pattern for fetching asynchronous data using `useEffect` and `useState` hooks, including handling loading states and errors.

Deep Watching Reactive Objects in Vue 3 `watch`

Learn to effectively monitor nested changes within reactive objects in Vue 3 using the `watch` function with the `deep` option in the Composition API.

Creating Flexible Components with Vue 3 Scoped Slots

Master Vue 3 scoped slots to build highly reusable components that allow parent components to customize and render content with child data.

Simple URL Validation with Regex

A concise JavaScript regex pattern to validate common URL formats, ensuring the presence of a protocol (http/https/ftp) and a basic valid domain structure.

Batch DOM Updates Using Document Fragments

Optimize web performance by using Document Fragments to make multiple DOM changes in a single reflow, significantly reducing browser rendering overhead for lists.

Get and Set Values of Form Input Fields

Understand how to programmatically retrieve and update values of various HTML form input fields using JavaScript for dynamic forms and data management.

Lazy Load Vue 3 Components for Performance

Improve Vue 3 application performance by asynchronously loading components only when needed, reducing initial bundle size and speeding up page load times.

Vue 3 Teleport for Global Modals

Effortlessly manage modals, tooltips, or notifications in Vue 3 using the built-in Teleport component, ensuring they render correctly outside the component tree.

Custom Vue 3 v-model for Multiple Properties

Create custom input components in Vue 3 that utilize v-model for multiple properties simultaneously, enabling flexible and powerful two-way data binding.