Declarative vs Imperative Programming

https://codeburst.io/declarative-vs-imperative-programming-a8a7c93d9ad2

http://www.redotheweb.com/2015/09/18/declarative-imperative-js.html

https://msdn.microsoft.com/zh-tw/library/ff750239.aspx

https://msdn.microsoft.com/zh-tw/library/ff750239.aspx

https://stackoverflow.com/questions/33655534/difference-between-declarative-and-imperative-in-react-js