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refactoring methods and learn more refactoring techniques. Michael Feathers recommends that you pay attention to things that seem useless or especially useful during this process so that when you finish this exercise and actually modify them, only in this way can we make things right-when we modify the things, we should focus on methods and test while modifying. What is "large-scale" reconstruction? Simple

What exactly is the callback function ?, What is the callback function? I was confused when I saw the callback function today. I found a lot of Search Engine information, but I did not understand it after reading "c and pointer. Briefly describe what

valid operations in the execution of a program, with a clear execution sequence between the different operations, if an operation is time consuming or is stuck in a long wait (such as waiting for a network response), the program will not respond to actions such as a mouse and keyboard, This time-consuming thread can be assigned to a separate thread to execute, making the program more interactive.2) thread

1. What is C #:Solution 1:c# is a development language, is from C and C + + evolved, a friend play called "C Four +", here the "#" number, do not read "Well", and read " sharp" I find in the online Chinese reading method called "Sharpe" also do not know right or not, HoHo an

With the development of the network, VoIP services and unified communication platforms become more and more important. The SIP protocol is an exciting focus. Some may ask, what is the SIP protocol? What's better about it? Here we will go into more details. The Chinese meaning of the SIP protocol is the process initiali

What is the knowledge of this function in PHP and what is its function? The following function has never been used. First, what is PHP knowledge? File processing? Or binary? Second, note it from the beginning to the end. Why have

A lambda function is a function that can receive any number of arguments (including optional arguments) and return a single expression value1, lambda function is relatively light, that is, still, it is suitable for the need to complete a function, but this function

This article mainly describes What is a thread： Threadsis the smallest unit in which the operating system is capable of operation scheduling. Processes are included in the process and are the actual processing units in the process. A thread is a collection of instructions. A thread

distribution In short, when the site opened CDN, users visit the site, not directly to the site of the original server, but a server distributed to your nearest server node, because the server close to you, so access speed or download speed will be faster. Do you remember the previous introduction of the computer Pepsi network to set up DNS? Also mentioned in the DNS server address must fill out the nearest to your IP, which is the nearest principl

individual things, the world's reasons or conclusions as a precondition. Therefore, this deductive reasoning process, with the experience of predecessors to deduce, it is possible to draw conclusions are also wrong. For example: "People, all like to eat." I am human, so I like to eat. "Induction: From individual things to general principles or conclusions, through comparison, analysis, synthesis, abstraction and other methods to clarify the causal li

What is Ajax? The interaction Model (flow) of Ajax? What is the difference between synchronous and asynchronous? Ajax cross-domain solution?What is Ajax: Asynchronous JavaScript and XMLAjax is