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JAVASCRIPT Snippets.

Extract Hashtags from Text with Regex

Learn how to use a regular expression in JavaScript to efficiently extract all hashtags (e.g., #webdev, #javascript) from a given string.

Strip HTML Tags from String using Regex

Discover a simple yet effective regular expression in JavaScript to remove all HTML tags from a string, useful for sanitizing user input or displaying plain text.

Centralized State Management with Pinia Store

Learn how to implement centralized state management in Vue 3 applications using Pinia, Vue's official store library, for predictable and reactive data flow.

Creating Custom Global and Local Directives

Enhance DOM elements with reusable low-level behavior using Vue 3 custom directives, illustrating both global registration and local component-scoped usage.

Teleporting Modal Content Outside Component Hierarchy

Efficiently render modal dialogs, tooltips, or notifications outside the current component's DOM structure using Vue 3's Teleport feature for better layout control.

Animating Element Transitions with Vue's <Transition> Component

Implement smooth enter/leave animations for elements or components using Vue 3's built-in <Transition> component and CSS transitions for dynamic UIs.

Deep Dependency Injection with Provide and Inject

Utilize Vue 3's provide and inject functions to pass data down deeply nested component trees without prop drilling, simplifying component communication.

Implement API Rate Limiting with Redis and Express

Protect your Node.js Express API from abuse and brute-force attacks by implementing effective rate limiting using Redis for tracking request counts.

Implement Simple Role-Based Access Control (RBAC) in Express

Set up a basic role-based access control (RBAC) middleware in an Express application to restrict routes and resources based on user roles and permissions.

Optimize DOM Updates with Document Fragments

Improve web performance by batching multiple DOM manipulations into a single reflow using Document Fragments, perfect for large lists or tables.

Smooth Fade In/Out Effect for DOM Elements

Create elegant animated transitions for showing and hiding elements by gradually adjusting opacity and display properties with JavaScript.

Manipulate CSS Custom Properties with JavaScript

Dynamically change website themes or individual component styles by reading and updating CSS custom properties (variables) using JavaScript DOM methods.