Nodejs installs Taobao mirror

Node.js is a server-side JavaScript engine that provides a way to run JavaScript code. Node.js is becoming increasingly popular in web development due to its highly modular nature and ease of development. The Taobao mirror is a mirror server specifically for NPM, which can provide faster download speeds than the official npm source. This article will introduce how to install the Taobao mirror in Node.js.

Why do you need to install Taobao mirror?

Node.js and npm use the official npm source to download dependency packages by default. However, due to factors such as access speed restrictions and geographical location, slow download speeds or lags may occur during use. Taobao mirror can be used as an alternative npm source to provide faster download speeds and solve these problems. Therefore, if you encounter download speed or unstable connection problems when using Node.js, installing Taobao mirror is a good choice.

How to install Taobao image?

Before using the Taobao image, you need to install Node.js and npm first. After the installation is complete, you can use the following command to verify whether the installation was successful.

node -v
npm -v

If the installation is successful, the system will output the version numbers of Node.js and npm.

Then, before installing the Taobao image, you can use the following command to check the currently used npm source:

npm config get registry

The address of the current npm source will be output at this time, usually https:// registry.npmjs.org/, this is the official npm source address.

Then, we need to use the following command to install the Taobao image:

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

The command contains:

• install: Install cnpm.
• -g: Install globally so that cnpm can be used anywhere.
• cnpm: Name of the installed program.
• --registry: Specify the installation source as Taobao image.

The execution of this command will take a few minutes, depending on your network speed and computer performance. After the command is executed, you can use the following command to check whether the installation is successful:

cnpm -v

At this time, the system will output the version number of cnpm, indicating that cnpm was installed successfully.

How to use Taobao mirror?

After you install cnpm, you can install dependency packages as you normally would using npm. The only difference is that when using cnpm, you need to replace npm in the command with cnpm, for example:

npm install express --save

When using cnpm, replace npm with cnpm:

cnpm install express --save

In this case , the installation speed will be significantly improved.

Of course, if you have cross-platform development needs, you can also consider specifying the npm source in the program. For specific methods, please refer to the npm documentation.

Summary

Node.js is an excellent server-side JavaScript engine, but you may encounter the problem of slow download speed when using it. At this time, installing Taobao mirror can provide faster download speed. We can install the Taobao image through a simple command, and it is basically the same as npm. After installation, you can use cnpm instead of npm in the program to increase the installation speed.

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