Premium
JAVASCRIPT Snippets.

How to dynamically update the browser document title in React

Implement a custom `useDocumentTitle` React hook to easily manage and update the browser tab's title dynamically, enhancing user experience in single-page applications.

How to safely attach and detach event listeners with useEventListener

Discover `useEventListener`, a custom React hook for declaratively attaching global or element-specific event listeners with proper cleanup, preventing memory leaks.

How to safely use LayoutEffect for both client and server-side rendering

Understand `useIsomorphicLayoutEffect`, a custom React hook that intelligently switches between `useLayoutEffect` and `useEffect` to avoid warnings during Server-Side Rendering (SSR).

How to implement a custom useInterval hook for repeating actions

Create a `useInterval` React hook to execute a function repeatedly at specified intervals, ideal for countdowns, animations, or periodic data fetching.

Implementing Client-Side Pagination for API Data

Learn how to fetch and display paginated data from a REST API, allowing users to navigate through results with next/previous buttons to enhance user experience.

Attaching JWT to API Requests Using Axios Interceptors

Implement an Axios interceptor to automatically add a JSON Web Token (JWT) from local storage to the Authorization header of every outgoing API request, simplifying authentication.

Secure Server-Side API Key Management and Usage in Node.js

Learn to securely store and use third-party API keys on the server-side in a Node.js Express application using environment variables, preventing client-side exposure.

Basic Client-Side API Response Caching with LocalStorage

Improve web application performance and reduce unnecessary API calls by implementing a simple client-side caching mechanism for API responses using localStorage.

Dynamically Adding List Items to a Container

Learn to dynamically create and append new HTML elements, like list items, to an existing container using JavaScript DOM manipulation methods.

Managing Element Data with Custom Data Attributes

Learn to store and retrieve small pieces of custom data directly on HTML elements using data attributes (`data-*`) for client-side JavaScript logic.

Dynamically Removing an Element from the DOM

Learn the modern and efficient way to remove any HTML element from the Document Object Model using its own `remove()` method.

How to use usePrevious hook to get the previous state or prop

Learn to create a custom React hook, usePrevious, to store and retrieve the prior value of any state or prop, essential for comparing changes.