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JAVASCRIPT Snippets.

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

JAVASCRIPT

Custom Composable for Asynchronous Data Fetching in Vue 3

Create a reusable Vue 3 composable to encapsulate asynchronous data fetching logic, providing reactive loading, error, and data states for any API request.

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JAVASCRIPT

Implement Dynamic Theming with Dark Mode Toggle in Vue 3

Enable dynamic theme switching, such as dark mode, in your Vue 3 application using CSS custom properties (variables) controlled by a Vue component.

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JAVASCRIPT

Programmatic Navigation and Route Guards in Vue Router 4

Master programmatic navigation and implement powerful route guards in Vue Router 4 for Vue 3 applications to control access and redirect users based on conditions.

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JAVASCRIPT

Create a Renderless Component for Reusable Logic in Vue 3

Develop a renderless component in Vue 3 to share complex logic and state without dictating UI, providing flexibility through scoped slots for custom rendering.

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JAVASCRIPT

Efficiently Debounce State Updates with useDebounce Hook

Custom React hook `useDebounce` delays updating a state value until a specified time passes, optimizing performance for search inputs or frequent API calls.

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JAVASCRIPT

Persist React State Across Sessions with useLocalStorage Hook

A custom React hook `useLocalStorage` simplifies synchronizing component state with local storage, ensuring data persists even after page refreshes.

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JAVASCRIPT

Detect Clicks Outside an Element with useClickOutside Hook

Custom React hook `useClickOutside` helps components like dropdowns or modals close automatically when a user clicks anywhere outside their boundaries.

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JAVASCRIPT

Access Previous State or Prop Values with usePrevious Hook

The `usePrevious` custom React hook provides a simple way to store and retrieve the previous value of any given state or prop, useful for change detection.

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JAVASCRIPT

Respond to CSS Media Queries in React with useMediaQuery Hook

Custom React hook `useMediaQuery` allows components to react to CSS media queries, enabling dynamic styling or rendering based on screen size.

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JAVASCRIPT

Enforce Strong Password Policies with Regex

Validate strong password requirements (min length, uppercase, lowercase, number, special character) with a single JavaScript regular expression for enhanced security.

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JAVASCRIPT

Setting Secure, HttpOnly, and SameSite Cookies in Node.js

Secure your web application's cookies by setting HttpOnly, Secure, and SameSite attributes in Node.js/Express to prevent common session hijacking vulnerabilities.

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JAVASCRIPT

Configuring Cross-Origin Resource Sharing (CORS) in Express.js

Securely enable Cross-Origin Resource Sharing (CORS) in your Express.js application, allowing only specified domains to access your API resources.

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