1. The createElement Method The common DOM operations in HTML are modifying DOM nodes and accessing DOM nodes. Beyond those, the W3C has also published technical standards for creating and deleting DOM nodes. The createElement method is used to create a DOM node. createElement() usually needs to be used together

1, Initializing the Project vue-cli is the official project scaffold released by Vue; using vue-cli, you can quickly create a Vue + Webpack project. 1 2 3 4 5 6 7 8 9 10 npm install -g vue-cli # Install vue-cli globally vue init webpack myproject # Create a vue project; when it runs, it prompts for information about the project cd myproject # Enter the project npm install # Install the dependency packages; a new node_modules folder is created and the packages are installed there npm run dev # Run locally, by default at http://localhost:8080, starting the service 2, Directory Structure 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 |--build //folder for webpack-related code | |--build.

1. What Problem We Ran Into If the features you implement are simple and both development and maintenance are easy, there would be no research into design patterns, frameworks, and related topics. It is precisely because Web systems are complex, requirements change quickly, there is a lot of reuse, there are many developers, and personnel handovers are frequent.