Implementation, encapsulation and callback function of animation function

Animation function encapsulation Animation implementation principle: Core principle: continuously move the box through the timer setInterval() Implementation steps: Gets the current position of the boxAdd a movement distance to the box's current positionRepeat this operation with a timerAdd a condition for end timingNote that this element ...

Posted by Warboss Alex on Fri, 03 Dec 2021 01:38:13 -0800

Redis principle - data structure

introduction Redis is a memory NoSql database, which is often used to implement functions such as caching, distributed session, leaderboard, message queue and so on. As a memory database, how does redis make full use of memory? How to achieve high performance? How to support so many functions? Maybe you can find the answer from the data struct ...

Posted by fil on Fri, 03 Dec 2021 01:35:01 -0800

The direction of this in JS and changing the direction of this

1, this point 1. Definitions this is a keyword used within the scope Global is rarely used, and most of it is used inside functions 2. Direction 2-1. Global usage When used globally, this points to window 2-2. Function usage Note: no matter how the function is defined, no matter where the function is, it only depends on the call of t ...

Posted by Russia on Fri, 03 Dec 2021 01:31:56 -0800

Performance test of three HTTP clients for Java&Go

After learning Practice of HTTP client in Golang language,Six implementations of HTTPServer development in Go language After that, I naturally started the HTTP client performance test in Java & go.I was writing before 100000 QPS, the ultimate duel between K6, Gatling and FunTester! This article and 120000 QPS per machine -- Revenge of FunTe ...

Posted by colmtourque on Fri, 03 Dec 2021 01:15:19 -0800

TypeScript official manual translation plan [x]: type manipulation - mapping type

Note: at present, there is no Chinese translation of the latest official documents of TypeScript on the Internet, so there is such a translation plan. Because I am also a beginner of TypeScript, I can't guarantee the 100% accuracy of translation. If there are errors, please point them out in the comment area;Translation content: the tentative t ...

Posted by kanch33 on Fri, 03 Dec 2021 00:58:49 -0800

Python learning notes - Tkinter_ 04 entry (single line input box)

1, Properties of the Entry field   About verification details reference resources: https://blog.csdn.net/qq_41556318/article/details/85108328 Because I have checked a lot of materials, many of them are not explained clearly here, so they are listed separately and explained in detail. The Entry component supports the verification of the l ...

Posted by RobinTibbs on Fri, 03 Dec 2021 00:52:16 -0800

goland basic package - use of unsafe

Warm tips: suitable for students with memory operation experience 1, The role of unsafe According to the definition of golang, unsafe is a type safe operation. As the name suggests, it should be used very carefully; Unsafe can be dangerous, but it can also be very useful. For example, when using system calls and Go structures that must have t ...

Posted by rob323 on Fri, 03 Dec 2021 00:32:08 -0800

A summary of the use of clickhouse

It is said that clickhouse is a columnar storage database used in olap scenarios with a large amount of data. Fortunately, it can also be used in actual scenarios. Let's talk about the simple experience of using this article.   1. Overall description Not much about architecture, column storage, large amount of data and high performance. See off ...

Posted by arlabbafi on Fri, 03 Dec 2021 00:26:30 -0800

A new method for reparameterization of graphical RMNet

1 PrefaceThe emergence of residual network allows us to train deeper networks, but due to its multi branch reasoning, it is not as fast as plain model without residual connection. RepVGG combines three branches into one branch through the idea of heavy parameters. However, RepVGG cannot reparameterize ResNet, because the reparameterization meth ...

Posted by cobalt30 on Fri, 03 Dec 2021 00:20:23 -0800

Android CameraX combines LibYUV and GPUImage to customize camera filters

Author: itfitness link: https://www.jianshu.com/p/f08...Contents of this document:prefacePreviously, a user-defined Camera filter (Android user-defined Camera filter) was implemented with Camera, but it ran a little stuck. This time, Camerax was used to achieve the same effect, which was found to be very smooth. I hope it can help students in n ...

Posted by FuzziNectar on Fri, 03 Dec 2021 00:17:49 -0800