1. Installation node. Js

Node. js official website: nodejs.org/en/

You are advised to download the stable version

2. Run vUE code

You need to install the dependency package NPM install for the first time

NPM run [config command] (see package.json for details)

2.1 Basic NPM Commands

Initialize a new project

npm init
Copy the code

Adding a dependency package

npm install [package]
npm install [package]@[version]
npm install [package]@[tag]
Copy the code

Add dependencies to different dependency categories

Add to the dependencies and devDependencies categories respectively:

npm install [package]
npm install [package] --save-dev
Copy the code

Upgrading dependency packages

npm upgrade [package]
npm upgrade [package]@[version]
npm upgrade [package]@[tag]
Copy the code

Removing dependency packages

npm uninstall [package]
Copy the code

Install all dependencies of the project

npm install
Copy the code

3. Install YARN (optional based on personal requirements).

Liverpoolfc.tv: yarn.bootcss.com/

Yarnnpm install yarn -g Run project yarn run [config command]

3.1 Yarn Basic Commands

Initialize a new project

yarn init
Copy the code

Adding a dependency package

yarn add [package]
yarn add [package]@[version]
yarn add [package]@[tag]
Copy the code

Add dependencies to different dependency categories

Add to the dependencies, devDependencies, Dependencies, and optionalDependencies categories respectively:

yarn add [package]
yarn add [package] --dev
yarn add [package] --peer
yarn add [package] --optional
Copy the code

Upgrading dependency packages

yarn upgrade [package]
yarn upgrade [package]@[version]
yarn upgrade [package]@[tag]
Copy the code

Removing dependency packages

yarn remove [package]
Copy the code

Install all dependencies of the project

yarn
Copy the code

or

yarn install
Copy the code

3.2 Possible Problems During YARN Installation

Problem: YARN: Cannot load file C: Users\Administrator\AppData\Roaming\ NPM \yarn.ps1, because scripts cannot be run on this system. For more information, please refer to the about_Execution_Policies https:/go.microsoft.com/fwlink/?LinkID=135170.Copy the code
1. Go to **C:\Windows\System32\WindowsPowerShell\v1.0** and find **powershell.exe**. Right-click the file and perform operations as an administrator. 2. Right-click the file and perform operations as an administrator. 3. Run the ** set-executionPolicy RemoteSigned** command and enter the **y** option. 4. Restart vscodeCopy the code

4. Install CNPM (optional depending on personal needs)

npm install -g cnpm --registry=https://registry.npm.taobao.org

Use method: CNPM [command] (command same as NPM)