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If you don't know this before reading this article, you won't simply use mongodb. Stamp here 1. Install mongodb dependency, here we install v2.2.33, if we've encountered it beforeDb.collectionIs not function is really just a mongodb library version issue (desktop creation of fml files) My project file name is fml C:\Users\admin\Desktop\fml> ...

koa2 view layer construction Next to the previous one koa2 routing and mvc building in Js full stack development Let's continue to learn about koa2. In the previous article, we split the project into route, controller and service layers according to the mvc architecture, but the view layer and control ...

preface As a front-end page and demand shredder, it can achieve limited improvement by repeating the same business requirements in daily work. In order to jump out of this mountain and open up a new vision, I suggest you read the source code of the top open source library on the market. This is a grea ...

system function summary In order to avoid redundant code, the function of message push is taken as an independent platform. Each subsystem generates tasks through common RESTful interface or message (kafka).Push function can be email, SMS, WebSocket or App. Tasks can be executed immediately or regularly. In order to meet the function of multip ...

1. Installation Node.js Reason: Appium is implemented with nodejs, so node is interpreter Download address: https://nodejs.org/en/download/releases/ Be careful Node.js Compatible with the version of Appium, you can check: https://github.com/appium/appium/releases After installation, open cmd to check ...

1.2 re create project: from which step Vue init webpack project name 1.3 copy item: do not copy directly Copy except nodes_ Modules, files other than After copying, cnpm install 1.4 different contents No problem, npm run dev can be started 1.5 press Ctrl + c to close after startup You can't access it ht ...

Resources https://ssr.vuejs.org Current Development Version "vue": "^2.6.11", "vue-router": "^3.3.4", "vue-server-renderer": "^2.6.11", "vuex": "^3.4.0" concept Server-side rendering: Render the vue instance as an HTML string directly back, activate as an interactive program on the front, old-fashioned; SSH can only return HTML ...

Node.js The use of Express framework Node.js The use of Express framework 1 Introduction to express framework 1.1 introduction and features of express framework 1.2 preliminary use of Express 2 Express framework Middleware 2.1 middleware introduction two point two app.use Usage of Middleware 2.3 ...

introduce vue video player is the vue version of videojs video.js Official website: https://videojs.com/ Refer to the official website: Video.js Is a web video player built from scratch for the HTML5 world. It supports HTML5 video and modern streaming formats, and it supports video playback on desktop ...

Interview and knocking, advanced stepping stone, design with mode, code more reasonable Explanation and application of Javascript Design Pattern System (exercise code) Chapter 2 object oriented 2-1 build development environment 2-2 what is object-oriented 2-3 object oriented inheritance 2-4 object oriented encapsulation 2-5 obje ...