Programmer Think

To ensure readability, this paper uses free translation instead of literal translation. To read more high-quality articles, stamp the GitHub blog, and over a hundred high-quality articles are waiting for you a year! Some of the features of JS have dramatically changed the way we code.Solutions, arrow functions, classes, and module systems that ...

Starting today with batch execution of use cases, the scenario is as follows: We may have multiple module files (. py) in our work. These files are distributed under different module files according to different business types or functions. In the previous small examples, our test cases are all in one file, running directly in the test suite ~ ...

If you've seen me already Becoming a Master Window Fitter Speaking, you'll know that processing window plug-ins can be complex. Recently, I have been improving the system bar processing in several applications so that they can draw behind the status and navigation bar. I think I've come up with some ways to make it easier to handle inserts (hop ...

What is an enumeration class? Enumeration classes are special classes that optimize the definition of fixed objects. In other words, when you need instances of a class to be one or more and relatively fixed, use enumerated classes. (Enumeration class extensible) Class instances are relatively fixed with dates, objectively unchanged numbers, an ...

Author javadoop, Senior Java Engineer.This article has been authorized to be published by the author.Text Link https://www.javadoop.com/post... This paper mainly introduces two parts about flow control. The first part introduces the source code of RateLimiter in Guava, including its two modes. Most articles on the Internet now only analyze sim ...

I. Preface Type judgment can sometimes be a real headache, but once you're skilled in using it, you'll feel that way. At the primary level, numbers and strings are judged. Intermediate, will judge arrays and objects. Advanced, will judge the date, regularity, error type. Advanced, will judge plainObject, empty object, window object and so on. B ...

Virtual dom Why did it happen?Browsers parse an html in five steps: create DOM tree -> create Style Rules -> build Render tree -> layout Layout -> draw Painting. Every time a real dom is manipulated, the browser executes the process from start to finish by building the DOM tree. Real dom operation is expensive, frequent operation ...

Effect Mouse touch button, appear ink style animation Screen adaptation An html file, a css file, no javascript, easy to use Welcome to my blog to read this article: http://clatterrr.com/archives... Source code Demonstration address: https://clatterrr.github.io/i... Source code: https://github.com/clatterrr/... note :root This CSS pseud ...

Constructor Let's first look at Container's constructor Container({ this.alignment, //Set the alignment of child elements this.padding, //Container interior margin, which belongs to decoration decoration scope Color color, // background color Decoration decoration, // Background decoration Decoration foregroundDecoration, //Prospect D ...

When doing background management, we use vue with element UI, axios plug-in for request method, because I need to get other values of the select ed options, so I need to pass in the object. Baidu has not read the documents of the drop-down box very carefully. Baidu has read several articles and has not understood their meaning. Then she goes to ...