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JAVASCRIPT Snippets.

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

JAVASCRIPT

Render Modals and Overlays Outside Component Tree with Vue 3 Teleport

Discover how Vue 3's `<Teleport>` component allows you to render content into a different part of the DOM, perfect for accessible modals, tooltips, and notifications.

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JAVASCRIPT

Implementing Localized Error Handling in Vue 3 with `onErrorCaptured`

Learn to catch and handle errors from descendant components using Vue 3's `onErrorCaptured` hook, creating robust and resilient user interfaces by isolating failures.

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JAVASCRIPT

Building a Reusable Expand/Collapse Transition Component in Vue 3

Create a flexible and reusable expand/collapse transition component in Vue 3 using the `<Transition>` component and JavaScript hooks for smooth, dynamic animations.

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JAVASCRIPT

Prevent Clickjacking with X-Frame-Options Header

Protect web applications from clickjacking attacks by implementing the X-Frame-Options HTTP header, controlling whether your site can be embedded in iframes or frames.

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JAVASCRIPT

Extract Image URLs from HTML with Regex

Learn to use a regular expression in JavaScript to efficiently find and extract all 'src' attributes of 'img' tags from an HTML string for data processing.

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JAVASCRIPT

Sanitize HTML Input by Removing Script Tags

Prevent Cross-Site Scripting (XSS) attacks by using a robust regular expression in JavaScript to effectively remove all '<script>' tags and their content from user-provided HTML input.

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JAVASCRIPT

Toggle CSS Classes on Elements

Learn to effortlessly add, remove, or toggle CSS classes on DOM elements using JavaScript's classList API, enabling dynamic styling based on user interaction.

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JAVASCRIPT

Implement Global Theming with React's useContext

Learn how to manage application-wide themes (e.g., light/dark mode) using React's powerful useContext hook, providing a simple and efficient global state solution.

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JAVASCRIPT

Optimize Expensive Calculations with React's useMemo

Improve React component performance by memoizing the result of expensive calculations, preventing unnecessary re-renders and re-executions with the useMemo hook.

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Handle Asynchronous Operations with a Custom useAsync Hook

Create a versatile custom React hook to manage the state of any asynchronous operation, centralizing loading, error, and data states for cleaner and more robust component logic.

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JAVASCRIPT

Detect Element Visibility with a Custom useIntersectionObserver Hook

Implement features like lazy loading images, infinite scrolling, or scroll-triggered animations by creating a custom React hook that utilizes the Intersection Observer API.

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JAVASCRIPT

Simplify Boolean State Management with a Custom useToggle Hook

Streamline the handling of simple boolean states (e.g., toggling a modal, menu visibility, or a checkbox) in React components with a clean and reusable custom useToggle hook.

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