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JAVASCRIPT Snippets.

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

JAVASCRIPT

Implementing Essential HTTP Security Headers (Node.js/Express)

Protect your web application from common attacks by implementing critical HTTP security headers like CSP, HSTS, and X-Frame-Options using Helmet.js in Express.

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JAVASCRIPT

Implementing CSRF Protection in a Node.js/Express Application

Secure your Node.js Express application against Cross-Site Request Forgery (CSRF) attacks by implementing a token-based protection mechanism using the csurf middleware.

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JAVASCRIPT

Sanitizing User Input for XSS Prevention (Client-side JavaScript with DOMPurify)

Effectively prevent Cross-Site Scripting (XSS) attacks by sanitizing user-generated HTML content on the client-side using the robust DOMPurify library in JavaScript.

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JAVASCRIPT

Securely Handling File Uploads (Node.js/Express with Multer)

Implement robust and secure file upload functionality in your Node.js Express application using Multer, including file type validation, size limits, and renaming.

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JAVASCRIPT

Setting up and Using a Pinia Store in Vue 3

Learn how to effectively manage application state in Vue 3 by setting up a Pinia store, defining state, getters, and actions, and consuming it in components.

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JAVASCRIPT

Creating a Custom Vue 3 `v-focus` Directive

Enhance user experience in Vue 3 by developing a custom `v-focus` directive to automatically focus input fields when a component mounts, improving accessibility.

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JAVASCRIPT

Implementing a Modal with Vue 3 Teleport

Efficiently render modal dialogs, notifications, or tooltips outside their component hierarchy using Vue 3's built-in <Teleport> component for cleaner DOM structure.

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JAVASCRIPT

Creating a Reusable `useGeolocation` Composable

Build a custom Vue 3 `useGeolocation` composable to reactively fetch and manage the user's current location, providing latitude, longitude, and error states.

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JAVASCRIPT

Dynamic Component Loading with Vue 3's `<component :is='...'>`

Render components dynamically in Vue 3 based on application state or user input using the powerful `<component :is='...'>` attribute, enabling flexible UI structures.

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JAVASCRIPT

React useFetch Hook for Asynchronous Data Fetching

Simplify asynchronous data fetching in React with a custom `useFetch` hook, providing clear loading, error, and data states for robust UI development.

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JAVASCRIPT

React useEventListener Hook for Global Event Management

Efficiently attach and detach event listeners to the window, document, or specific DOM elements using a custom `useEventListener` React hook, ensuring proper cleanup.

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JAVASCRIPT

React useOutsideClick Hook for Detecting Clicks Outside an Element

Implement click-outside functionality for modals, dropdowns, and popovers with a reusable `useOutsideClick` React hook, enhancing interactive UI components.

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