A JavaScript Framework provides guidelines and predefined code for building applications, while a JavaScript Library is a collection of reusable functions and utilities.
Frameworks control the flow and structure of the code, while developers have more control over the flow when using libraries.
Frameworks are less flexible and have a steeper learning curve, while libraries provide more flexibility and are easier to learn.
Frameworks are best for building large-scale applications, while libraries are suitable for adding specific functionalities.