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JAVASCRIPT Snippets.

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

JAVASCRIPT

Secure File Upload Validation in Node.js with Multer

Implement secure file upload validation in Node.js using Multer to check mime types, file size, and prevent malicious uploads, enhancing application security.

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JAVASCRIPT

Securely Manage Environment Variables in Node.js Applications

Best practices for managing sensitive configuration like API keys and database credentials using environment variables in Node.js, preventing hardcoding.

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JAVASCRIPT

Create a Reusable useToggle Composable for Vue 3

Implement a `useToggle` composable in Vue 3's Composition API to easily manage boolean state, enhancing code reusability and simplifying component logic.

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JAVASCRIPT

Build a Reusable Modal Component with Vue 3 Slots

Create a highly flexible and reusable modal component in Vue 3 using named and scoped slots, allowing dynamic content injection for headers, bodies, and footers.

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JAVASCRIPT

Manage Global Event Listeners with Vue 3 Lifecycle Hooks

Learn to effectively add and remove global event listeners in Vue 3 using `onMounted` and `onUnmounted` hooks, ensuring proper resource management and preventing memory leaks.

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JAVASCRIPT

Deep Data Passing with Provide/Inject in Vue 3

Master `provide` and `inject` in Vue 3 to effortlessly pass data down through deeply nested components without prop drilling, maintaining clean component interfaces.

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JAVASCRIPT

Validate URL Format with Regular Expression

Use a JavaScript regular expression to accurately validate URLs, checking for common protocols and domain structures in web applications.

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JAVASCRIPT

Validate Password Strength with Regex Criteria

Implement a strong password validation using a regular expression in JavaScript, requiring uppercase, lowercase, digits, special characters, and minimum length.

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JAVASCRIPT

Remove HTML Tags from String with Regex

Clean a string by removing all HTML tags using a regular expression in JavaScript, useful for sanitizing user-generated content.

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JAVASCRIPT

Implement a Custom useDebounce Hook for React

Learn to create a reusable React useDebounce hook to delay state updates, optimizing performance for inputs like search bars and preventing excessive re-renders.

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JAVASCRIPT

Synchronize React State with Local Storage using useLocalStorage

Create a React useLocalStorage hook to effortlessly persist and retrieve component state across browser sessions, simplifying data management for user preferences or forms.

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JAVASCRIPT

Adapt React Components with useMediaQuery for Responsive Design

Create a React useMediaQuery hook to dynamically render UI based on CSS media queries, enabling truly responsive components that react to screen size changes.

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