JavaScript Testing Tutorial - part 3: Testing props, mounting functions, and snapshot testing

Author: Marcin WanagoTranslate: Crazy Technology House Original: https://wanago.io/2018/09/10/... Reproduction is strictly prohibited without permission JavaScript Testing Tutorial - part 1: Unit testing with Jest JavaScript testing tutorial - part 2: Introducing Enzyme and testing React components JavaScript Testing Tutorial - part 3: Testin ...

Posted on Sun, 17 Nov 2019 21:14:27 -0500 by ThaSpY

opengl saves the rendered image

In the previous article, I was able to display the media files through opengl. opengl draws multiple boxes on the displayed YUV video sequence Display BMP image with opengl If you want to save the image data processed by blend or other methods as image files, what should you do? At this time, we need to use the glReadPixels fun ...

Posted on Sun, 03 Nov 2019 01:01:51 -0400 by ErnesTo

Android installs multiple identical apk s on the same phone for easy debugging

Android studio installs multiple identical apk s on the same phone Original address: http://yj.itrydo.com/posts/iKJryXL9zkfSGRTZk First look at the effect:   1. When I use ecslip, I have been studying the problem of "android studio installs multiple identical apks on the same mobile phone", but I can't do what I want every time. On ...

Posted on Fri, 01 Nov 2019 19:03:29 -0400 by LonelyPixel

loadrunner script parsing & writing process

loadrunner script resolution: The following is a script analysis recorded by loadrunner about the system logging in and clicking demand management module to initiate demand collection. 1. Enter user name password and verification code to log in 2. Click demand management module 3. Fill in the in ...

Posted on Fri, 01 Nov 2019 10:23:08 -0400 by tommy1987

Don't look for any more. A thorough analysis of weak references in Java (refer to the official website)

overview This article will start with the definition of weak reference, and then analyze its principle step by step through the use of cases, so that readers can have a deep understanding of what is weak reference, how to use weak reference, what scenarios will use weak reference, what problems weak reference can solve, and how its source code ...

Posted on Tue, 29 Oct 2019 04:19:39 -0400 by activeserver

Canvas operation of canvas

You can pay attention to me. I will always update the latest technical articles of Android. I. quick reference table of Canvas's common operation II. Basic operation of Canvas 1. Why does canvas operation need canvas operation? Canvas operations can help us to create graphics in a more understandable way. For example, how to draw a line segmen ...

Posted on Mon, 21 Oct 2019 16:08:57 -0400 by reli4nt

Spring Boot 2: use Spring Boot Admin to monitor your application

1. Preface It is necessary to monitor Web application in production. We can monitor application health, performance and other indicators in near real time to deal with some emergencies in time. Avoid some faults. For Spring Boot applications, we can monitor through a lightweight monitoring tool, Spring Boot Admin (SBA). 2. Spring Boot Admin Sp ...

Posted on Sat, 19 Oct 2019 14:41:23 -0400 by Dark-Elk

React16 source code parsing - create update

Welcome to read the React source code analysis series:React16 source code analysis (I) - illustration of Fiber architectureReact16 source code analysis (2) - create updateReact16 source code analysis (III) - ExpirationTimeReact16 source code analysis (IV) - SchedulerReact16 source code analysis (V) - update process rendering stage 1React16 sour ...

Posted on Fri, 18 Oct 2019 16:14:00 -0400 by hardyvoje

Create MySQL replication slave database - xtracebackup mode

Percona XtraBackup tool provides a way to perform MySQL data hot backup when the system is running. Percona XtraBackup performs online non blocking, tight compression, and highly secure full backups on the transaction system, so the application remains fully available during the scheduled maintenance period. Environmental preparation: master ...

Posted on Fri, 18 Oct 2019 15:27:43 -0400 by David Rech

React16 source code analysis - update process rendering phase 2

Welcome to read the React source code analysis series:React16 source code analysis (I) - illustration of Fiber architectureReact16 source code analysis (2) - create updateReact16 source code analysis (III) - ExpirationTimeReact16 source code analysis (IV) - SchedulerReact16 source code analysis (V) - update process rendering stage 1React16 sour ...

Posted on Fri, 18 Oct 2019 13:49:42 -0400 by tcl4p