Credit Sources:

https://en.wikipedia.org/wiki/Main_Page

https://developer.apple.com/swift/

https://stevenpcurtis.medium.com/imperative-vs-declarative-swift-programming-7e3c77309f76

https://www.javatpoint.com/

https://www.programiz.com/python-programming

https://trio.dev/blog/companies-using-php

https://acloudguru.com/blog/engineering/what-is-the-ruby-programming-language

https://www.coursereport.com/blog/ruby-vs-python-choosing-your-first-programming=language#:~:text=Two%20of%20the%20most%20popular%20programming%20languages%2C%20especially%20first%20languages,Hulu%2C%20Kickstarter%2C%20and%20Github.