JavaScript and Blockchain Basics

JavaScript and Blockchain Basics

JavaScript and blockchain are two technologies that are quickly becoming essential for modern web developers to understand. JavaScript is a powerful programming language used to create interactive websites and web applications, while blockchain is a distributed ledger technology that allows...
How to create a basic HTTP server in Node.js

How to create a basic HTTP server in Node.js

Efficient Node.js HTTP servers require managing request and response streams with proper backpressure to prevent memory leaks and stalled connections. Key aspects include flow control, header management, caching, CORS, logging, rate limiting, graceful degradation, and integrating WebSockets for real-time communication.
How to use addEventListener with options in JavaScript

How to use addEventListener with options in JavaScript

Understanding the event listener options object is vital for effective event management in JavaScript. Browser support varies, with older versions lacking full implementation. Key considerations include feature detection, proper reference usage for removeEventListener, and the implications of passive listeners. Testing across environments ensures consistent behavior.
How to use closures inside loops in JavaScript

How to use closures inside loops in JavaScript

Master JavaScript closures, loops, and asynchronous programming to avoid common pitfalls. Understand how closures capture loop variables and explore solutions like IIFE, `let`, `forEach`, `map`, and `async/await`. Enhance code reliability, readability, and performance while ensuring robust testing with frameworks like Jest and Mocha.
JavaScript for Video Processing and Streaming

JavaScript for Video Processing and Streaming

Detailed Explanation of Concepts JavaScript is a versatile programming language that can also be used for video processing and streaming. With the help of the Media API, JavaScript allows developers to manipulate and stream videos directly within web applications. In...
How to convert a JavaScript object to JSON

How to convert a JavaScript object to JSON

JavaScript objects are vital for data structuring in web development. This guide covers object creation using literal notation, dynamic properties, nesting, and accessing values. It also explains JSON.stringify() for converting objects to JSON, including handling serialization limits and optional parameters for customization.

How to export a function from a module in JavaScript

How to export a function from a module in JavaScript

Default exports hinder JavaScript module refactoring by allowing arbitrary import names, complicating IDE updates. Named exports enable automatic renames and improve code discoverability, boosting efficiency and consistency. Always use named exports for better maintainability.

How to repeat execution using setInterval in JavaScript

How to repeat execution using setInterval in JavaScript

JavaScript setInterval best practices. Use recursive setTimeout for async polling and data fetching. Prevent request pile-ups. Manage timers with the Page Visibility API for background tabs. Abstract logic with custom hooks like useInterval to avoid memory leaks from forgotten clearInterval calls.

How to consume a promise using then in JavaScript

How to consume a promise using then in JavaScript

Asynchronous programming with JavaScript uses Promises and async/await for efficient code management. Chaining .then() blocks can lead to complexity, while async/await simplifies the process, improving readability. For independent requests, Promise.all() allows parallel execution, enhancing performance and ensuring error handling in concurrent operations.