search
HomeWeb Front-endFront-end Q&AHow to start a project based on Node.js

Node.js is a JavaScript runtime environment based on the Chrome V8 engine. It utilizes an event-driven, non-blocking I/O model, making it a lightweight and efficient web server framework. Here we will mainly introduce how to start a project based on Node.js.

Starting a project based on Node.js requires the following main steps:

Step 1: Install Node.js

To use Node.js, you first need to Install Node.js. It is recommended to use the official installation source of Node.js for installation. You can get the latest stable version at the official Node.js download page.

After the installation is complete, you can use the following command in the terminal to check whether Node.js is successfully installed:

node -v

This command will display the version number of the installed Node.js, indicating Node. js is installed successfully.

Step 2: Install project dependencies

Project dependencies refer to the external libraries and plug-ins required by the project. Before installing project dependencies, you need to open the directory where your project is located in the terminal (cd command), and then use the following command to install the dependencies:

npm install

This command will find package.json in the project file, reads the dependencies in it, and installs them all into the local project's node_modules folder. This helps projects maintain consistency in development and deployment.

Step 3: Start the project

After the project's dependencies have been installed, you can use the following command to start the project:

npm start

This command will be in the terminal Start your Node.js project and listen for HTTP requests on the default port of localhost (usually 3000). After successful startup, you will see some information about your project in the terminal. If all went well, your project will now be accessible in your browser at http:localhost:3000.

Step 4: Reload the project

When you modify the code in the project, you need to restart the project for it to take effect. This is obviously troublesome, so we can use the nodemon tool, which will monitor file changes for your Node.js project and automatically restart your project.

First, you need to install nodemon globally:

npm install nodemon -g

After the installation is complete, you can use the following command to start your project:

nodemon app.js

This This means that after you save the modified file, your project will automatically restart, which will undoubtedly make your development process smoother.

After successfully starting nodemon, you will see some information about your project in the terminal. If all went well, your project will now be accessible in your browser at http:localhost:3000.

Summary:

In this article, we introduced the step-by-step method of starting a project based on Node.js, and introduced how to avoid repeatedly starting the service when the project code is updated. Whether you are a beginner or an experienced developer, these steps are crucial, so be sure to read them carefully and follow them.

The above is the detailed content of How to start a project based on Node.js. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
What is useEffect? How do you use it to perform side effects?What is useEffect? How do you use it to perform side effects?Mar 19, 2025 pm 03:58 PM

The article discusses useEffect in React, a hook for managing side effects like data fetching and DOM manipulation in functional components. It explains usage, common side effects, and cleanup to prevent issues like memory leaks.

Explain the concept of lazy loading.Explain the concept of lazy loading.Mar 13, 2025 pm 07:47 PM

Lazy loading delays loading of content until needed, improving web performance and user experience by reducing initial load times and server load.

What are higher-order functions in JavaScript, and how can they be used to write more concise and reusable code?What are higher-order functions in JavaScript, and how can they be used to write more concise and reusable code?Mar 18, 2025 pm 01:44 PM

Higher-order functions in JavaScript enhance code conciseness, reusability, modularity, and performance through abstraction, common patterns, and optimization techniques.

How does currying work in JavaScript, and what are its benefits?How does currying work in JavaScript, and what are its benefits?Mar 18, 2025 pm 01:45 PM

The article discusses currying in JavaScript, a technique transforming multi-argument functions into single-argument function sequences. It explores currying's implementation, benefits like partial application, and practical uses, enhancing code read

How does the React reconciliation algorithm work?How does the React reconciliation algorithm work?Mar 18, 2025 pm 01:58 PM

The article explains React's reconciliation algorithm, which efficiently updates the DOM by comparing Virtual DOM trees. It discusses performance benefits, optimization techniques, and impacts on user experience.Character count: 159

What is useContext? How do you use it to share state between components?What is useContext? How do you use it to share state between components?Mar 19, 2025 pm 03:59 PM

The article explains useContext in React, which simplifies state management by avoiding prop drilling. It discusses benefits like centralized state and performance improvements through reduced re-renders.

How do you prevent default behavior in event handlers?How do you prevent default behavior in event handlers?Mar 19, 2025 pm 04:10 PM

Article discusses preventing default behavior in event handlers using preventDefault() method, its benefits like enhanced user experience, and potential issues like accessibility concerns.

What are the advantages and disadvantages of controlled and uncontrolled components?What are the advantages and disadvantages of controlled and uncontrolled components?Mar 19, 2025 pm 04:16 PM

The article discusses the advantages and disadvantages of controlled and uncontrolled components in React, focusing on aspects like predictability, performance, and use cases. It advises on factors to consider when choosing between them.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),