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JAVASCRIPT Snippets.

Lazy Load Components with Vue 3 defineAsyncComponent

Optimize Vue 3 application performance by lazy loading components only when needed using `defineAsyncComponent` and `<Suspense>`, reducing initial bundle size and improving user experience for large apps.

Implement Global Error Handling in Vue 3

Set up a centralized global error handler in Vue 3 using `app.config.errorHandler` to catch unhandled errors from components, reactivity, and lifecycle hooks for centralized logging and reporting.

Perform Programmatic Navigation with Vue Router 4

Learn to navigate programmatically in Vue 3 applications using Vue Router 4's `useRouter` composable and `router.push`, `router.replace` methods for dynamic routing logic.

Create a Reusable Vue 3 useLocalStorage Composable

Develop a custom Vue 3 composable `useLocalStorage` to easily persist and retrieve reactive state in the browser's local storage, enhancing data persistence across page reloads.

Access DOM Elements with Template Refs in Vue 3

Learn how to access specific DOM elements or child component instances directly in Vue 3 using template refs (`ref()` and `ref='myElement'`) and the `onMounted` lifecycle hook for imperative interactions.

Validate Email Addresses with a Robust Regex Pattern

Learn to validate email addresses effectively in JavaScript using a comprehensive regular expression pattern for client-side and server-side input checks.

Validate Strong Passwords with Regex (Min Length, Chars)

Implement strong password validation in JavaScript using regex to enforce minimum length, uppercase, lowercase, number, and special character requirements.

Extract All URLs from a String Using Regex

Learn how to extract all valid URLs (HTTP/HTTPS) from any given text string in JavaScript using a powerful regular expression, perfect for content parsing.

Generate URL-Friendly Slugs from Strings with Regex

Create clean, SEO-friendly URL slugs from any string in JavaScript by transforming text and removing special characters using regex.

Validate and Extract YYYY-MM-DD Dates with Regex

Use regular expressions in JavaScript to validate strings against the YYYY-MM-DD date format and extract the date components for parsing.

Create a Reusable Vue 3 useToggle Composable

Learn to build a simple `useToggle` custom composable in Vue 3 Composition API for managing boolean states efficiently across components.

Implement a Modal Dialog with Vue 3 Teleport

Create flexible and accessible modal dialogs in Vue 3 using the `Teleport` component to render content outside the current component's DOM tree.