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JAVASCRIPT Snippets.

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

JAVASCRIPT

Batch DOM Updates Using Document Fragments

Optimize web performance by using Document Fragments to make multiple DOM changes in a single reflow, significantly reducing browser rendering overhead for lists.

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JAVASCRIPT

Get and Set Values of Form Input Fields

Understand how to programmatically retrieve and update values of various HTML form input fields using JavaScript for dynamic forms and data management.

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JAVASCRIPT

Lazy Load Vue 3 Components for Performance

Improve Vue 3 application performance by asynchronously loading components only when needed, reducing initial bundle size and speeding up page load times.

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JAVASCRIPT

Vue 3 Teleport for Global Modals

Effortlessly manage modals, tooltips, or notifications in Vue 3 using the built-in Teleport component, ensuring they render correctly outside the component tree.

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JAVASCRIPT

Custom Vue 3 v-model for Multiple Properties

Create custom input components in Vue 3 that utilize v-model for multiple properties simultaneously, enabling flexible and powerful two-way data binding.

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JAVASCRIPT

Vue 3 Custom Directive for Click Outside

Implement a reusable Vue 3 custom directive to detect clicks occurring outside of a specific element, ideal for auto-closing dropdowns, modals, or menus.

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JAVASCRIPT

Access Child Methods in Vue 3 with `ref` and `defineExpose`

Learn how to call methods of a child component directly from its parent in Vue 3 by using template refs and explicitly exposing methods with `defineExpose`.

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JAVASCRIPT

Add Basic API Rate Limiting to Express.js

Implement a basic rate limiting middleware for Express.js applications to protect against brute-force attacks and API abuse by restricting the number of requests per client.

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JAVASCRIPT

Configure Secure CORS for Express.js APIs

Learn to securely configure Cross-Origin Resource Sharing (CORS) in your Express.js API, controlling which domains can access your resources and preventing unauthorized cross-origin requests.

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JAVASCRIPT

Implement a Custom Autofocus Directive in Vue 3

Create a reusable Vue 3 custom directive (v-autofocus) to automatically focus on an input or element when its component is mounted, enhancing user experience for forms.

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JAVASCRIPT

Manage Shared State with Vue 3 Provide/Inject

Learn to efficiently share and manage state across deeply nested components in Vue 3 using the `provide` and `inject` API, effectively avoiding prop drilling.

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JAVASCRIPT

Optimize List Rendering with Vue 3's `v-memo` Directive

Boost performance of large, complex lists in Vue 3 by using the `v-memo` directive to prevent unnecessary re-renders of static or unchanging content blocks within `v-for` loops.

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