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Preface This series of articles aims to explain how to build a front-end monitoring system from scratch. The project has been sourced Project address: https://github.com/bombayjs/b... (web sdk) https://github.com/bombayjs/b... (Server, for providing api) (not finished) https://github.com/bombayjs/b... (background management system, visual d ...

Recently, the company asked to do live video broadcasting function with chat room to record today First introduce the required Js Cloud Melting Technical Documentation https://www.rongcloud.cn/docs... <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script> <script src="https://sdk-release.qnsdk.com/qiniu-web- ...

Before the emergence of one-click login, the most common ways of APP registration and login in the market are account password, SMS authentication and third-party login. These methods seem to be common and convenient, but in fact, there are many security risks, and the user experience is relatively poor. Firstly, the arrival rate of SMS authent ...

Preface: Recently, the new Flutter project has the requirement of "Ali Cloud Push Notification", that is, when Flutter's App starts, it detects a new notification, clicks the notification bar and jumps to the specified page. Here I use the third-party plug-in Rammus to push notifications. I always used Fcm to push notifications befor ...

Written in front I wonder if you've ever encountered an if else nest like a "pyramid lying across": if (true) { if (true) { if (true) { if (true) { if (true) { if (true) { } } } } } } I'm not exaggerating. I really ...

I. Preface The default qcombobox control, if the content of the element item is too long to exceed the width of the control itself, will automatically be cut off and turned into an ellipsis display. Some application scenarios do not want to be an ellipsis display, as long as they want to be displayed. Another application scenario needs to set t ...

Links to the original text: https://www.jianshu.com/p/ce071aa3ffa8   crash file When crash occurs in running APP, if there is a corresponding handler or a third party crash SDK in the code, they will collect the relevant running stack, ...

Hi3516EV200 uses UART1 Notes UART1 is needed in business, and the corresponding serial port can be seen by using the command ls/dev/ttyAMA*. However, an error is reported with cat/dev/ttyAMA1 as follows: ~ # ls /dev/ttyAMA* -l crw------- 1 root ...

1. Background Since business functions require access to IM (Instant Chat) functionality, the initial thought was to use WebSockets to achieve this functionality. It was natural to trick (haha) that the server version is too low to support the wx protocol (and WebSockets are no longer supported) and have to look for third-party services becaus ...

With this understanding and exposure to Flutter, you can learn how to develop a project using Flutter in its entirety.In fact, in Flutter, everything is a widget, and our interface is stacked with widgets. A Flutter project involves the following points: Project Code Layering Theme Style Plug-in unit Route Network Data Interaction Interfac ...