What does nodejs need to be installed?

Node.js is a JavaScript running environment based on the Chrome V8 engine, which can help developers easily build high-performance applications. If you want to start using Node.js, the first step you need to do is to install Node.js. This article will introduce the matters and steps you need to pay attention to when installing Node.js.

1. Confirm the computer environment

Before installing Node.js, you need to confirm whether your computer environment meets the requirements for running Node.js. Typically, Node.js supports the following operating systems:

• Windows
• macOS
• Linux

Additionally, you will need Confirm whether your computer has the necessary runtime libraries and package managers installed, similar to npm and yarn.

2. Download Node.js

After confirming that the computer environment meets the requirements, you need to obtain the installation of Node.js through the Node.js official website or other reliable download sources Bag. Depending on your computer environment, you can choose to download the following versions:

• Windows 32-bit version or 64-bit version
• macOS version
• Linux 32-bit version or 64-bit version Bit version

Choose the correct version to download based on your actual needs. After the download is complete, double-click the installation package to start the installation.

3. Installing Node.js

Installing Node.js is very simple, just follow the installation wizard step by step. During the installation process, you can choose some customized configurations according to your needs, such as the installation path, whether to add it to the system environment variables, etc.

4. Configuring environment variables

After the installation is completed, Node.js needs to be added to the system environment variables so that Node.js can be used in any directory Command line tools. The specific method is as follows:

• In Windows system, open "Control Panel" --> "System" --> "Advanced System Settings" --> "Environment Variables" and find " System Variables" and add the installation path of Node.js to the value of this variable.
• In macOS or Linux systems, add the installation path of Node.js to the ~/.bash_profile file.

5. Test Node.js

After the installation is complete, you can enter the node -v command on the command line to view the version number of Node.js to prove Node.js has been successfully installed and environment variables have been configured.

Summary

Installing Node.js is not complicated. You just need to download the correct version and follow the installation wizard step by step. After the installation is complete, Node.js needs to be added to the system environment variables so that the Node.js command line tool can be used in any directory. If you encounter any problems, you can refer to the official documentation or seek help from the community.

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