writing best practices

run, the faster you will find any deviations from those tests. If you can run all the tests multiple times a day, the system will not expire for more than a few minutes. This is a reasonable goal. We will never allow the system to regress. Once it is working at a specific level, it must not be reversed to a slightly lower level.However, validation is only one of the benefits of writing tests. Both unit and acceptance tests are a form of documentation

can be judged or processed according to ErrorCode. Summary:comprehensive consideration 1) 2) a) b), a good exception handling method is: Define so predictable error messages, expressed in ErrorCode and errormsg. It is necessary to increase the language version of ErrorMsg. This requires that we not use Chinese when writing exception-handling code. Either define the error message as ErrorCode, or describe the error message in concise English. For exa

Web Front-End optimization best practices the forth part is oriented to CSS. A total of 6 rules of practice are currently in line. See also the Mozilla Developer Center article: writing efficient CSS 1. Place CSS on top of code page (put stylesheets in the top) I think the official explanation is somewhat vague. This article is actually related to user access expectations. CSS to the top, the browser can

In the process of software development and maintenance, documents are essential data, which can improve the efficiency of software development, guarantee the quality of software, and have the function of guidance, help and dispel doubt in the process of software use. Especially in the maintenance work, the importance of the document is self-evident. This article has sorted out the 10 best document writing practice in software development, hoping to be

The summary of the best practices of python encoding helps you sort out the knowledge points related to the best practices of python encoding, and makes a brief summary of some usage of python from the perspective of performance, if you are interested, you can refer to the suggestions that I believe many of you are using python. I have always been fond of python. there is no doubt that python is not efficie

This article mainly shares seven jQuery best practices. What are the best practices and bad practices when using the JavaScript library? If you are interested, you can refer to the increasing number of rich web applications and high user expectations for fast interaction and response, developers began to use JavaScript libraries to quickly and efficiently complet

Like other jobs, do we need to learn more about our life principles apart from work? Programmers are more rational, because writing a program requires reason to look at some ideas of a programmer who understands life. Over the past 10 years, programmers have been talking about the practices of programmers in China, I hope you can learn from it. In my family's eyes, I have always been their pride since I was

Front-end engineers have a high degree of emphasis on writing standard front-end code. These best practices are not published by the authoritative organization, but are summarized by a large number of front-end engineers in their practice, with the aim of improving the readability, maintainability and performance of the code. So then, let's talk about some of the standard

Learn from Futurice's Android developers. Follow these guidelines to avoid reinventing the wheel. If you are interested in developing an iOS or Windows Phone, see the iOS good practices and Windows client good practices these two articles.Summary??? Using Gradle and its recommended engineering structure??? Put passwords and sensitive data in gradle.properties??? Do not write your own HTTP client, use volley

calculation time, the better.Time echo "Scale=500;4*a (1)" |bc-l-q3.141592653589793238462643383279502884197169399375105820974944592307 \ 81640628620899862803482534211706798214808651328230664709384460955058 \ 22317253594081284811174502841027019385211055596446229489549303819644 \ 28810975665933446128475648233786783165271201909145648566923460348610 \ 45432664821339360726024914127372458700660631558817488152092096282925 \ 40917153643678925903600113305305488204665213841469519415116094330572 \70365759

arrayPublic string[] Getenumstringarray () { return Arrays.stream (Recordtypeenum.values ()). Map (Enum::name). ToArray ( string[]::new); }4. Writing a line of lambda syntax helps to improve the robustness of your code (the focus here is not on the use of lambda, but I think it's worth recording)The business scenario is to increase the production schedule (plan), a schedule can have multiple products, a product needs one or more ingredients

arrayPublic string[] Getenumstringarray () { return Arrays.stream (Recordtypeenum.values ()). Map (Enum::name). ToArray ( string[]::new); }4. Writing a line of lambda syntax helps to improve the robustness of your code (the focus here is not on the use of lambda, but I think it's worth recording)The business scenario is to increase the production schedule (plan), a schedule can have multiple products, a product needs one or more ingredients

visually interesting enough to maintain the user's attention. So, stop wasting time writing so many unread content and start using icons! In this article, we'll show you good examples and best practices for using icons in web design to support content . 1. How to use Icons The primary goal of using icons should be to help users absorb and process information more efficiently. The general practice is to

course, you also need to leave enough space for expansion, otherwise, you do this later, you will die very difficult to see, see Slashdot example (November 06, 2009), a simple ALTER TABLE statement took 3 hours, because there are 16 million data. 13. Choose the right storage engine There are two storage engines MyISAM and InnoDB in MySQL, each with a few pros and cons. MyISAM is suitable for applications that require a large number of queries, but it is not very good for a lot of write operatio

lot of write operations. Even if you just need to update a field, the entire table will be locked and other processes will be unable to manipulate the read process until the read operation is complete. In addition, MyISAM's calculations for SELECT COUNT (*) are extremely fast.The InnoDB trend will be a very complex storage engine, and for some small applications it will be slower than MyISAM. He is it supports "row lock", so in the writing operation

the most significant bottleneck. So it's very helpful to have your data compact, because it reduces access to the hard drive. 19. Choose the right storage engine There are two storage engines MyISAM and InnoDB in MySQL, each with a few pros and cons. MyISAM is suitable for applications that require a large number of queries, but it is not very good for a lot of write operations. Even if you just need to update a field, the entire table will be locked and other processes will be unable to manipu

InnoDB trend will be a very complex storage engine, and for some small applications it will be slower than MyISAM. He is it supports "row lock", so in the writing operation more time, will be more excellent. Also, he supports more advanced applications, such as: transactions. Here's the MySQL manual. target= "_blank" MyISAM Storage Engine InnoDB Storage Engine 20. Using an Object-relational mapper (relational Mapper) With ORM (Object relational Mappe

?" Discussion and this thing MyISAM suitable for some applications that require a lot of queries, but it is not very good for a lot of write operations. Even if you just need to update a field, the entire table will be locked and other processes will be unable to manipulate the read process until the read operation is complete. In addition, MyISAM's calculations for SELECT COUNT (*) are extremely fast.The InnoDB trend will be a very complex storage engine, and for some small applications it will

; Public user () {} public user (string name, int age, string pwd) {this.name = name; this.age = age; this.pwd = pwd;}//... suddenly Slightly set, get method} '-@GeneratedValue automatically generate id-@Column set column properties (name= "database column name")-@Transient does not map to database # # 2.4 Create Repository Interface Build Business method ' ' Javapublic interface Userrepository extends Jparepository {Public User findbyname (String name);} Inherit jparepository after inherit

How long will it take for you to open a webpage? I don't want to wait for a second. But in fact, most websites are disappointing in terms of response speed. Now more and more people are building their own websites and blogs. What is the response speed of Your webpage? In this article, we will introduce the best practices for improving web page performance and the corresponding problem solutions, let webmasters or friends who are about to become webmas