Chai (Assertion Library)

Chai is a tool used by developers to check if their code works correctly. It provides a set of easy-to-read statements called assertions, which verify that certain conditions are true—for example, that a function returns the expected result or that a value matches what's anticipated. Think of it as a way to automate testing, ensuring that parts of a software program behave as intended. By using Chai, developers can quickly identify issues and improve the reliability of their code, making their development process more efficient and dependable.