v1.1 if all algorithm are in one function, it will expand. so each operate type should be separated. question: if add scientific operation.cpp: #include "operation.h" int OperationAdd(string number1, string number2){ int result= atoi(number1.c_s…

first step, only aim to work. it works, but i have not seen the necessaty to use class yet. my question, why use class? main.cpp: #include <iostream> #include <iostream> #include "operation.h" using namespace std; int main(int argc,…

delphi refactor procedure TCameraComponentForm.btnRefreshConfigClick(Sender: TObject); var a:string; begin a:=CameraComponent1.CaptureSetting.Width.ToString; Memo1.Lines.Add( a); end; 不仅可以重构成 过程 还可以重构函数参数,真强大! procedure TCameraComponentForm.btnRefres…

We have a render prop based class component that allows us to make a GraphQL request with a given query string and variables and uses a GitHub graphql client that is in React context to make the request. Let's refactor this to a function component th…

最近在看<重构>的书,想到Xcode有一个Refactor的功能,不知道您用的多不多,用这个功能在我们开发过程中,可以提高开发效率. Refactor 右键显示 Refactor 一.Rename 重命名符号,修改属性或方法的名字.当然有可能您用的是全局Replace这个方法,但是这个无法替换Class的文件名.演示下将TestViewController的.h .m .xib及用到的地方修改为有意义的命HomeViewController. 1.在TestViewController上右键点…

Binary search is an algorithm that accepts a sorted list and returns a search element from the list. It provides a dramatic performance boost over searching linearly through a list for an element. Let’s play around number of iterations required for e…

Recursion is when a function calls itself. This self calling function handles at least two cases, the recursive case and the base case. People seem to either love it or hate it because it can be difficult to understand and implement correctly. Let’s…

In this lesson, I refactor a simple Counter component connected to Redux to use Unstated instead. I explain some of the cognitive overhead of working with Redux and how Unstated can help simplify your application codebase. Additional Resources https:…

The componentWillReceiveProps() method is being deprecated in future version of React (17). Many of us use this method day-to-day to check for incoming prop changes, store state, and to invoke side effects like logging or fetching data from a server.…

In this lesson we'll take some existing code and refactor it using some functions from the Ramda library, most notably, compose and converge. When we're done, we'll have taken a function with a couple of local variables and parameter references and c…