Page 2-node.js Programming Tutorials: Learn node.js Online-php.cn

Article Tags

Home

Technical Articles

Backend Development

How to develop a simple CRUD API using MongoDB

How to use MongoDB to develop a simple CRUD API In modern web application development, CRUD (Create, Delete, Modify, Check) operations are one of the most common and important functions. In this article, we will introduce how to develop a simple CRUD API using MongoDB database and provide specific code examples. MongoDB is an open source NoSQL database that stores data in the form of documents. Unlike traditional relational databases, MongoDB does not have a predefined schema

Sep 19, 2023 pm 12:32 PM

API MongoDB CRUD

How to use Vue to implement QQ-like friend list effects

How to use Vue to implement QQ-like friend list effects. With the popularity and application of the Vue framework in front-end development, more and more developers are beginning to use Vue to build various powerful web applications. In this article, we will introduce how to use Vue to implement special effects that imitate the QQ friend list, and illustrate it through specific code examples. 1. Preparation Before you start writing code, you first need to make preparations. Please make sure you have Node.js and VueCLI installed. First, use the following command to create

Sep 19, 2023 pm 12:09 PM

VUE QQ 列表特效

How to use Vue to implement imitation WeChat group chat avatar effects

How to use Vue to implement WeChat group chat avatar-like special effects. With the development of social media, we often see various interesting special effects in various applications. Among them, the imitation WeChat group chat avatar effect is a very popular effect. In this article, we will teach you how to use the Vue framework to achieve this effect and provide some specific code examples. Before we start, we need to prepare the development environment. Make sure you have Node.js and VueCLI installed. If it is not installed, you can install it with the following command: np

Sep 19, 2023 am 10:18 AM

VUE 微信头像特效

How to implement real-time trading function of data in MongoDB

How to implement real-time transaction function of data in MongoDB In modern Internet applications, real-time transaction function is a very important part. Real-time trading of data means that when a certain data in the system changes, other related data can change in real time. In this article, we will discuss how to use MongoDB to implement real-time trading of data and give specific code examples. Determine requirements and data structure Before starting, you first need to clarify the specific business requirements and data structure. Live trading features may include the following

Sep 19, 2023 am 09:48 AM

数据 MongoDB 实时交易

How to use Vue to implement image filter effects

How to use Vue to implement image filter effects In modern web applications, image effects are one of the key factors that attract users. Using Vue.js as the front-end framework, you can quickly and easily implement various image effects, including picture filter effects. This article will introduce how to use Vue.js to implement image filter effects and provide specific code examples. 1. Preparation Before starting, make sure you have the following tools and knowledge: Install any modern browser (such as Chrome, Firefox). Install the latest

Sep 19, 2023 am 08:12 AM

VUE 图片滤镜特效实现

A powerful tool to improve the efficiency of Java function development: microservice architecture

A powerful tool to improve the efficiency of Java function development: Microservice architecture With the continuous development of software development, developers are increasingly pursuing the improvement of development efficiency. In order to quickly iterate and deploy new features, using microservice architecture has become the choice of many enterprises. Microservices architecture is a method of splitting software applications into a set of small, loosely coupled services, each running in its own process and can be independently deployed, managed, and scaled. In Java development, using a microservices architecture can bring many advantages, including: Independent development and deployment: Each

Sep 18, 2023 pm 01:41 PM

微服务效率提升功能开发

Create custom modules in Node.js

A node.js module is a package that contains certain functions or methods for use by people who import them. Some modules are provided on the Internet for developers to use, such as fs, fs-extra, crypto, stream, etc. You can also make your own package and use it in your code. Syntax exports.function_name=function(arg1,arg2,....argN){ //Putyourfunctionbodyhere...}; Example - Custom node module creates two files named calc.js and index.js, and copy the following code segment

Sep 18, 2023 pm 12:17 PM

How to create a Switch in ReactJS?

ReactJS is a popular JavaScript library for building user interfaces, which provides an efficient way to develop interactive components. Toggle switches are often used to allow users to switch between dark mode and light mode themes in web applications. Toggles can also be used to show or hide specific content or parts of a page. In this article, we will explore how to create a toggle switch using ReactJS. Prerequisites Before proceeding with this tutorial, it is assumed that you have a basic understanding of ReactJS and have set up a development environment with Node.js and npm installed. Set up the React application and install the required libraries First, let’s create a new React application using CreateReactApp

Sep 18, 2023 pm 12:01 PM

Where is the default installation location for npm packages in Windows 10?

Directory path to a locally installed NPM package for a specific project on Windows: Those interested in installing packages using npm can run the given command in their command prompt after navigating to their project directory. npminstallpackage-name When we execute the above command, it will download the specified package and all required dependencies from the npm registry to install into a folder named node_modules. This will be created in the current project's working directory. For example, let's say we are building some Node.js applications and our project directory name is: my-first-app. Then first we use command prompt to switch to that directory and then install some software

Sep 18, 2023 am 11:25 AM

软件包目录安装

Teach you step by step how to build artificial intelligence network applications!

In this article, you'll bootstrap a web development project using Qwik and prepare it for integration with OpenAI's AI tools.

Sep 18, 2023 am 10:35 AM

人工智能

How to install Angular on Windows 11 or 10 using Command Prompt

But why use Angular? Before we delve into the installation process, let’s quickly take a look at some of the benefits of using Angular that make it worth considering for web development. Angular provides a powerful structured framework for building modern web applications. It is known for: Its component-based architecture allows you to build and maintain complex applications with ease. Web applications created with Angular run seamlessly on a variety of platforms and devices. Angular optimizes your application for better performance, making it load quickly and run smoothly. Active community, ample resources, tutorials, and support for Angular development. step 1. Open Pow as administrator

Sep 17, 2023 pm 04:01 PM

应用程序包管理器 Angular

Stream writable.cork() and uncork() methods in Node.js

The writable.cork() method is used to force all written data to be buffered in memory. Buffered data is removed from buffer memory only after calling the stream.uncork() or stream.end() method. Syntax cork()writeable.cork() uncork()writeable.uncork() parameters because it buffers the written data. The only required parameter will be writable data. Example Create a file called cork.js and copy the following code snippet. After creating the file, run this code using the following command as shown in the example below - nodecork.jscork.js Live Demo //Programtodem

Sep 16, 2023 pm 10:53 PM

How to share code between Node.js and the browser?

Sharing code between the backend and frontend of a full-stack application can be a challenging task. However, it is essential for building maintainable and scalable applications. By sharing code, we avoid code duplication, reduce development time, and maintain consistency across applications. In this tutorial, we'll explore different techniques for sharing code between Node.js and the browser, and learn how to choose the best method for our project. Technical users of sharing code between Node.js and browser can follow the following methods to share code between node.js and browser - CommonJS module CommonJS module is a widely used and shared code in Node.js simple way.

Sep 14, 2023 pm 10:45 PM

Server-side rendering (SSR) using Next.js and JavaScript

In the world of web development, providing a fast and seamless user experience is crucial. One way to achieve this is through server-side rendering (SSR), a technology that allows web pages to be rendered on the server before being sent to the client. SSR provides many benefits, including improved performance, SEO optimization, and better user interaction. In this article, we’ll explore the basics of SSR using Next.js, a popular JavaScript framework for building server-rendered React applications. What is server-side rendering (SSR)? Traditionally, web applications have relied on client-side rendering, where the entire rendering process occurs in the browser using JavaScript

Sep 14, 2023 pm 10:17 PM