How to install and configure Node.js on Mac system

Recently, more and more developers tend to use Node.js for backend development. Mac is an excellent computer system that allows programmers to work more efficiently with less effort. In this article, we will provide some installation and configuration guidance for developers using Node.js on Mac systems.

1. Install Node.js

To install the latest version of Node.js, you need to install the Homebrew package manager first. Open the following command in the terminal to install Homebrew:

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install )"

After the installation is successful, enter the following command to check whether Homebrew is installed successfully:

brew -v

Next, use Use the following command to install Node.js:

brew install node

If you want to install a stable version of Node.js, use the following command:

brew install nodenv
nodenv install stable
nodenv rehash

2. Configure Node.js

After the installation is complete, you need to use command line tools to manage Node.js for development, deployment and other operations. Here are some pointers on how to configure Node.js:

1. Check the version number

Enter the following command in the terminal to check the currently installed Node.js version number:

node -v

2. Using NPM

NPM is a module manager for Node.js that can help you manage projects Various modules required. You can check the current NPM version number through the following command:

npm -v

Using the following command can also help you install or update modules:

npm install <package_name></package_name>
npm update <package_name></package_name>

3. Configure environment variables

To be in Node.js can be run in any directory, you need to set environment variables on Mac. The following is the setting method:

(1) Open the terminal and enter the following command:

nano ~/.bash_profile

(2) Open the Add the following statement to the file:

export PATH="/usr/local/bin:$PATH"

(3) Restart the terminal. Run the following command to check whether your environment variables are set successfully:

echo $PATH

4. Use PM2

PM2 Yes A process manager for production environments of Node.js applications. Using it, you can easily manage and monitor your Node.js applications. The following is how to use PM2:

(1) Install PM2:

npm install -g pm2

(2) Enter the following command to start An application:

pm2 start <path_to_your_file></path_to_your_file>

(3) Use the following command to check the application status:

pm2 status

(4) To stop the application, use the following command:

pm2 stop <app_name_or_id></app_name_or_id>

(5) Use the following command ( --update-env) can update your existing applications:

pm2 update <app_name_or_id> --update-env</app_name_or_id>

Summary:

Through the above steps, you can now install and configure Node.js on your Mac. During the use process, if you learn more Node.js modules and develop better Node.js, it will be more efficient and development will be much more enjoyable. Good luck!

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