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HTML Sanitization to Prevent XSS Attacks in JavaScript

Implement robust HTML sanitization with DOMPurify in JavaScript. Effectively prevent Cross-Site Scripting (XSS) attacks in user-generated content, ensuring the secure display of dynamic data.

Persisting Reactive State with `useLocalStorage` Composable

Learn to create a Vue 3 Composition API composable for easily persisting and retrieving reactive state to and from browser local storage, enhancing data persistence.

Programmatic Navigation and Route Parameters with Vue Router

Discover how to programmatically navigate in Vue 3 applications using Vue Router's `useRouter` and `push` method, including passing route parameters and query strings.

Implementing a Global Event Bus with `mitt` in Vue 3

Learn how to set up a lightweight global event bus using the `mitt` library in Vue 3 Composition API to facilitate communication between unrelated components without prop drilling.

Custom `v-model` for Reusable Vue 3 Components

Learn to implement a custom `v-model` on your own Vue 3 components using `defineModel` (or `modelValue` prop and `update:modelValue` event for older setups), creating intuitive two-way data binding.

Dynamic Component Rendering with `<component :is="componentName">`

Learn how to dynamically render different components in Vue 3 based on reactive data using the special `<component :is="...">` element, enabling flexible UI structures.

Validate Email Addresses

Learn to validate email addresses in web forms using a comprehensive regular expression in JavaScript, ensuring correct format and preventing common errors.

Validate IPv4 Addresses

Implement robust IPv4 address validation in JavaScript using a regular expression to ensure proper format for network configurations or input fields.

Generate URL-Friendly Slugs

Convert any string into a clean, URL-friendly slug using a JavaScript regular expression, replacing special characters with hyphens for SEO and readability.

Validate Hex Color Codes

Validate hex color codes (e.g., #RRGGBB, #RGB, #RRGGBBAA, #RGBA) using a concise JavaScript regular expression for UI development and input validation.

Implement a Strict Content Security Policy (CSP) Header

Enhance web application security by implementing a Content Security Policy (CSP) header in Node.js with Express, mitigating XSS and data injection attacks.

Set Secure Cookie Flags (HttpOnly, Secure, SameSite) in Express

Improve web application security by correctly configuring HTTP cookie flags like HttpOnly, Secure, and SameSite in your Node.js Express server to protect against common attacks.