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ELab Team
ELab Team
Jun 1, 2022 · Blockchain

Build a Simple JavaScript Blockchain: Theory, Code, and Proof‑of‑Work Demo

This article walks through blockchain fundamentals, explains key concepts like decentralization, immutability, and proof‑of‑work, and provides a complete JavaScript implementation with code examples, testing steps, and a practical demo that records World Cup predictions.

Proof of Workblockchaindemo
0 likes · 17 min read
Build a Simple JavaScript Blockchain: Theory, Code, and Proof‑of‑Work Demo
ELab Team
ELab Team
May 27, 2022 · Frontend Development

Build a QR Code Chrome Extension with Svelte: A Step‑by‑Step Guide

This article walks through creating a Chrome QR‑code extension using Svelte, covering project setup with SvelteKit, manifest configuration for MV3, component development, reactive logic, download handling, custom adapter creation to satisfy CSP, build steps, debugging, and the final result.

Chrome ExtensionMV3QR code
0 likes · 12 min read
Build a QR Code Chrome Extension with Svelte: A Step‑by‑Step Guide
ELab Team
ELab Team
May 25, 2022 · Blockchain

Build a Decentralized HPC Token on Ethereum: Step‑by‑Step Web3.0 Tutorial

This article introduces Web 3.0 concepts, explains blockchain architecture and Ethereum fundamentals, then walks through creating an ERC‑20 HPC token, setting up a Geth client, writing and deploying Solidity contracts, and building a MetaMask‑enabled front‑end deployed on IPFS.

EthereumSolidityToken Development
0 likes · 22 min read
Build a Decentralized HPC Token on Ethereum: Step‑by‑Step Web3.0 Tutorial
ELab Team
ELab Team
May 21, 2022 · Frontend Development

Mastering VS Code Extension Development: From Electron Basics to Custom Plugins

This article explains how VS Code extensions work by detailing Electron’s architecture, the multi‑process model, and the plugin loading mechanism, then walks through building a custom extension that adds a right‑click command to generate a Lynx component scaffold, complete with code snippets and configuration steps.

Extension DevelopmentNode.jsTypeScript
0 likes · 17 min read
Mastering VS Code Extension Development: From Electron Basics to Custom Plugins
ELab Team
ELab Team
May 19, 2022 · Frontend Development

Boost Web Performance: Mastering Image Optimization with WebP and Lazy Loading

This guide explores systematic image optimization for web applications, covering formats like WebP, lossless vs lossy compression, lazy loading, placeholder strategies, format fallback, monitoring, and practical code implementations to reduce image size, memory usage, and improve loading speed and user experience.

CompressionLazy LoadingResponsive Images
0 likes · 18 min read
Boost Web Performance: Mastering Image Optimization with WebP and Lazy Loading
ELab Team
ELab Team
May 17, 2022 · Frontend Development

Unlocking Web Audio: Mastering Audio DSP with the Web Audio API

This article introduces the Web Audio API, explains core audio DSP concepts such as signal processing, time and frequency domains, and details the main AudioContext and AudioNode components, followed by practical examples, code snippets, and references for building sophisticated web‑based audio applications.

Audio DSPAudioNodeJavaScript
0 likes · 8 min read
Unlocking Web Audio: Mastering Audio DSP with the Web Audio API
ELab Team
ELab Team
Apr 29, 2022 · Information Security

Why HTTPS Is Essential: A Deep Dive into HTTP, Encryption, and SSL/TLS

This article explains the evolution from HTTP to HTTPS, detailing HTTP’s history, its security shortcomings, the principles of symmetric and asymmetric encryption, digital signatures, certificate authorities, and the complete HTTPS handshake process, helping readers understand how secure web communication works.

Certificate AuthorityEncryptionHTTPS
0 likes · 16 min read
Why HTTPS Is Essential: A Deep Dive into HTTP, Encryption, and SSL/TLS
ELab Team
ELab Team
Apr 28, 2022 · Frontend Development

Why ESBuild and SWC Are Revolutionizing Frontend Build Performance

This article explains what ESBuild and SWC are, why they dramatically speed up JavaScript bundling and compilation compared to traditional tools, and provides practical guidance on integrating them into modern frontend workflows such as Vite, Webpack, and custom scripts.

Frontend Build ToolsGoJavaScript Bundler
0 likes · 18 min read
Why ESBuild and SWC Are Revolutionizing Frontend Build Performance
ELab Team
ELab Team
Apr 27, 2022 · Frontend Development

Master RxJS: Functional Foundations and Reactive Programming Essentials

This article introduces RxJS, explaining its roots in functional and reactive programming, detailing core concepts such as Observables, Observers, Subscriptions, Subjects, and operators, and demonstrates practical code examples that illustrate how to manage asynchronous event streams effectively in modern front‑end development.

Functional ProgrammingJavaScriptObservables
0 likes · 22 min read
Master RxJS: Functional Foundations and Reactive Programming Essentials