Asynchrony in JavaScript refers to the concept of executing tasks outside of the main program flow, allowing the main program to continue its operations without being blocked or paused. In other words, asynchrony allows operations (like reading files, making network requests, etc.) to take place independently and notifies the main program when they are done.
This is crucial in JavaScript, particularly for Node.js or any web-based environments where blocking operations could significantly bottleneck performance. Asynchronous operations might use callbacks, promises, or async/await syntax in JavaScript.
