Libraries and frameworks
A library is a collection of code that helps a developer or a team develop a project. Libraries may be used to build an entire application or just a part of it. They may also be developed internally or in-house.
Frameworks are an on-demand tool that allows a developer to build a web application or website. The purpose of a framework is to organize the code of a project. In general, a framework has a structure and scope that a library does not.
A dynamically typed language allows you to define a variable once, but have it change its type at the same time. This means that you can use conditionals to handle null values. However, it’s important to note that you must update the value of the variable after it has been defined.
Compatibility with other languages