window nodejs installation configuration

As a front-end developer, the most commonly used operating system is Windows, and Node.js is one of the indispensable tools in current front-end development. Therefore, it is important to install and configure Node.js on Windows operating systems. This article will introduce the installation and configuration process of Node.js in detail based on the Windows operating system to help front-end developers better use Node.js.

1. Download the installation package

First, we need to download the 64-bit or 32-bit installation package suitable for Windows operating system from the Node.js official website. The official website address is https://nodejs.org/en/download/.

After the download is completed, double-click to run the installation package.

2. Install Node.js

After running the installation package, select the components to be installed. Usually we check the default "Node.js runtime" and "npm package manager" "That's it.

During the installation process, please be sure to check "Automatically install the necessary tools" to automatically add Node.js to the system PATH. In this way, Node.js can be used directly in the command line window.

3. Verify whether the Node.js installation is successful

After completing the installation of Node.js, we can verify whether the installation is successful through the command line window. Press the Win R key to open the run window, enter cmd and press the Enter key to open the command line window.

Enter the following command in the command line window:

node -v

If the version number of Node.js is successfully displayed, it means that Node.js is installed successfully.

4. Configuring npm

npm is the Node.js package manager, used to download, install and manage Node.js packages. In order for npm to work properly, we need to configure some parameters.

First, we need to create a global installation folder to store the global modules we installed. Enter the following command in the command line window:

mkdir "%USERPROFILE%AppDataRoaming
pm"

Then, we need to open the npmrc configuration file, open it using Notepad or any text editor npmrc file in the root directory of drive C (if it does not exist, you need to create one manually), add the following content in it:

prefix=%USERPROFILE%AppDataRoaming
pm

After the addition is completed, save document.

Finally, enter the following command in the command line window:

npm config set registry https://registry.npm.taobao.org

This command will download npm The source is set to Taobao mirror to speed up npm download speed.

The complete configuration process is shown in the figure below:

5. Testing npm

After configuring npm, we can use the following command to test whether npm is normal. Working:

npm -v

If the version number of npm is successfully displayed, it means that npm configuration is successful.

6. Configure environment variables

In order to make Node.js more convenient to use, Node.js needs to be added to the environment variables. Enter the following command in the command line window:

setx /m path "%path%;C:Program Files
odejs"

In this command, "C:Program Files
odejs" is the path to the folder where you installed Node.js. This command adds the path of Node.js to the system PATH so that we can use Node.js anywhere.

7. Install global modules

There are some global modules in Node.js that we can install through npm and can be used anywhere.

In the command line window, run the following command:

npm install -g express

This command will install the express module.

8. Test the global module

Test whether the global module is working properly through the following command:

express -v

If successful, it is displayed If the version number of express is found, it means that the global module is successfully installed.

This article introduces the entire process of installing and configuring Node.js on the Windows operating system, including downloading and installing, verifying, configuring npm, configuring environment variables, installing global modules, etc. With these steps, we can more easily use Node.js for front-end development.

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