JSONPlaceholder is a free, open-source mock REST API service offering realistic example data (including users, posts, comments, todos, and more) for prototyping and testing front-end applications—no sign-up or backend needed. It supports standard HTTP methods, though only GET requests return persistent data.
Semantic Versioning uses the format major.minor.patch:
In package.json, dependency ranges control allowed updates:
"~1.2.3" or "1.2.x" → versions ≥1.2.3 <1.3.0"^1.2.3" or "1.x" → versions <2.0.0"*" or "x" → any version
export and import keywords to share and reuse code across different files.
There are two main ways to export code from a module: named exports and default exports.
JavaScript has evolved over the years to support asynchronous programming, allowing us to handle tasks like API calls, file reading, and timers without blocking the main thread. One of the most important tools for handling asynchronous operations in JavaScript is the Promise. In this post, we'll break down what a JavaScript Promise is, how to use it, and some common patterns that make asynchronous programming more manageable.
