This project is a reference catalogue of the new syntax and behavioral changes introduced in the ECMAScript 6 (ES6) specification for JavaScript. It serves as a curated overview and comparison table of the language features defined by the standard, documenting additions such as block scoping with let and const, arrow function syntax, default parameter handling, and rest parameter collection. The reference is structured as a side-by-side comparison chart that maps old and new JavaScript syntax patterns, providing a focused guide for each capability. It covers the core language fundamentals
Snowpack is an ESM-powered frontend build tool and development server that serves native ES modules directly to the browser. By eliminating the bundling process during development, it enables nearly instant server startup and unbundled frontend development. The project features a framework-aware hot module reload system that preserves component state during updates, with specific Fast Refresh integration for React, Preact, Svelte, and Vue. It also acts as a modern web transpiler, automatically converting TypeScript, JSX, and CSS Modules into browser-compatible code without requiring manual co
This project is a Python implementation of a distributed ledger system. It serves as a blockchain prototype designed to demonstrate the creation and linking of data blocks in a sequential chain. The system utilizes a proof-of-work consensus mechanism and a hash-linked block sequence to maintain data integrity. It includes a REST API that allows external clients to query the ledger state and submit transactions over HTTP. The implementation covers core distributed ledger capabilities, including sequential block chaining and in-memory state management.
Jest is a JavaScript testing framework designed for writing and running automated test suites to verify the correctness of JavaScript and TypeScript code. It functions as a comprehensive toolset that integrates a test runner, a mocking and spying library, a snapshot testing tool, and a code coverage tool. The framework distinguishes itself through snapshot testing, which records the serialized state of data structures to detect regressions in future executions. It also includes a mocking and spying library for simulating external dependencies and tracking function calls to isolate code during