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JAVASCRIPT Snippets.

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

JAVASCRIPT

Programmatic Route Navigation with Vue Router in Vue 3

Master programmatic navigation in Vue 3 applications using `useRouter` from Vue Router, enabling dynamic route changes, redirects, and query parameter manipulation.

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JAVASCRIPT

Memoize Functions to Prevent Unnecessary Re-renders with useCallback

Discover how React's useCallback hook optimizes performance by memoizing functions, preventing unnecessary re-creation and re-renders in child components.

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JAVASCRIPT

Interact with DOM and Store Mutable Values with useRef

Learn to use React's useRef hook for direct DOM manipulation, accessing elements, or storing mutable values that persist across renders without triggering updates.

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JAVASCRIPT

Build a Reusable useToggle Custom Hook

Create a versatile useToggle custom hook in React to easily manage boolean state (e.g., for modals, dark mode) across multiple components, enhancing reusability.

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JAVASCRIPT

Persist React State to Local Storage with useLocalStorage Hook

Learn to create a custom useLocalStorage hook to automatically synchronize a React state variable with browser local storage, making your data persistent.

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JAVASCRIPT

Vue 3 Composition API: State Management with `ref` and `reactive`

Learn to manage component state in Vue 3 using the Composition API's `ref` for primitive values and `reactive` for objects, a fundamental pattern.

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JAVASCRIPT

Building a Reusable Vue 3 Composable for Fetching Data

Discover how to create custom composables in Vue 3 to encapsulate and reuse reactive logic, like data fetching, across multiple components effectively.

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JAVASCRIPT

Vue 3: Deep Component Communication with `provide` and `inject`

Efficiently pass data down through deeply nested components in Vue 3 without prop drilling by utilizing the `provide` and `inject` features.

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JAVASCRIPT

Dynamic Component Rendering in Vue 3 with `<component :is>`

Render different components conditionally and dynamically at runtime in Vue 3 applications using the powerful `<component :is='...'/>` attribute.

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JAVASCRIPT

Vue 3 Component Flexibility with Slots (Default, Named, Scoped)

Master Vue 3 slots to create highly flexible and reusable components, allowing parent components to inject custom content (default, named, scoped).

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JAVASCRIPT

Implement a Content Security Policy (CSP) Manually

Manually configure a robust Content Security Policy (CSP) header in your Express.js application to mitigate various types of XSS and data injection attacks.

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JAVASCRIPT

Prevent SQL Injection with Parameterized Queries in Node.js

Implement parameterized queries with Node.js and PostgreSQL (or other SQL databases) to effectively prevent SQL injection vulnerabilities by separating SQL logic from user input.

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