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JAVASCRIPT Snippets.

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

JAVASCRIPT

Global Error Handling and Component Error Boundaries in Vue 3

Implement robust error handling in Vue 3 applications using `app.config.errorHandler` for global catches and `errorCaptured` lifecycle hook for component-specific error boundaries.

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JAVASCRIPT

Create a `v-click-outside` Custom Directive in Vue 3

Implement a reusable Vue 3 custom directive, `v-click-outside`, to detect clicks occurring outside of a specific element, useful for dropdowns, modals, and popovers.

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JAVASCRIPT

Lazy Loading (Async) Components in Vue 3 for Performance

Improve your Vue 3 application's performance by lazy loading components using `defineAsyncComponent`, splitting your bundle and reducing initial load times.

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JAVASCRIPT

Implementing a Debounce Function with a Vue 3 Composable

Create a reusable `useDebounce` composable in Vue 3 to delay function execution, preventing excessive calls for user inputs like search fields or window resizing.

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JAVASCRIPT

Using `watchEffect` vs `watch` for Reactive Side Effects in Vue 3

Understand the differences and ideal use cases for `watch` and `watchEffect` in Vue 3 for managing reactive side effects, from specific data changes to automatic dependency tracking.

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JAVASCRIPT

Validate Password Strength (Min. 8 Chars, Mixed Case, Digit, Special)

Create a JavaScript function to validate password strength, enforcing requirements for minimum length, uppercase, lowercase, digits, and special characters.

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JAVASCRIPT

Validate Date Format (YYYY-MM-DD)

Learn to validate dates in the YYYY-MM-DD format using a precise regular expression in JavaScript, perfect for form input validation.

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JAVASCRIPT

Implement Cross-Site Request Forgery (CSRF) Protection

Protect your Node.js Express application from CSRF attacks by implementing token-based verification using the `csurf` middleware for enhanced form security.

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JAVASCRIPT

Set Secure HTTP Headers with Helmet.js in Express

Enhance your Node.js Express application's security by configuring essential HTTP headers like CSP, HSTS, and X-Frame-Options using the Helmet.js middleware.

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JAVASCRIPT

Secure Password Hashing and Verification with bcrypt.js

Implement robust password security in Node.js applications by hashing and verifying user passwords using the bcrypt.js library, protecting against brute-force and rainbow table attacks.

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JAVASCRIPT

Basic Pinia Store for Global State Management

Learn to create a simple Pinia store in Vue 3 for managing global application state, like a counter or user data, efficiently across components.

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JAVASCRIPT

Composable for Client-Side Filtering and Sorting Data

Implement a reusable Vue 3 Composable to efficiently filter and sort local array data based on user input, enhancing dynamic list displays.

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