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How to operate mysql with nodejs

Node.js is a very powerful JavaScript runtime environment that can be used to develop various types of applications, including web applications, command line tools, and various backend services. Its power lies in its rich modular ecosystem, which includes many modules for database connection and management. Among them, the mysql module is used to connect to the MySQL database. In this article, we'll cover how to use Node.js to connect to and manage a MySQL database. The steps are roughly as follows: 1

May 28, 2023 am 09:02 AM

How nodejs proxy https

With the rapid development of the Internet, the use of HTTPS protocol is becoming more and more widespread. For some projects that need to use HTTPS protocol, the proxy capability of Node.js is becoming more and more important. This article will introduce the method of Node.js proxy HTTPS protocol. First, we need to understand what the HTTPS protocol and SSL/TLS are. HTTPS is a secure transmission protocol based on the TLS/SSL protocol. It uses the SSL/TLS protocol to ensure security during the transmission process. Among them, TLS (Transport

May 28, 2023 am 09:00 AM

Why learn nodejs

Node.js is a JavaScript runtime environment based on the Chrome V8 engine. It allows front-end developers to develop on the back-end, realizing the sharing of front-end and back-end code, making development more efficient, flexible, and simple. Node.js can be used to build web applications, command line tools, network tools, desktop applications, IoT (Internet of Things) applications, and more. Today we will discuss why you should learn Node.js. 1. Node.js has wide applicability Nod

May 27, 2023 pm 10:55 PM

nodejs console.log does not wrap lines

In Node.js, using the console.log() function to output information is a common operation. Normally, each call to the console.log() function will output one line of data and automatically wrap the data. But sometimes we need to output multiple information on the same line, instead of starting a new line every time we call the console.log() function. In this case, we need to modify the default behavior of the console.log() function. In Node.js, change the default value of console.log() function to

May 27, 2023 pm 10:49 PM

nodejs request tomcat

With the rapid development of front-end technology, more and more front-end engineers begin to pay attention to the interaction with the back-end. As a back-end technology, Node.js has always attracted the attention of front-end engineers. But for front-end engineers, the most familiar one is Tomcat, so how to request Tomcat in Node.js? This article will elaborate on this issue. 1. Understand Tomcat Tomcat is an open source Java Servlet container and a Web container in the JavaEE specification. Tomcat supports J

May 27, 2023 pm 10:46 PM

Does nodejs support database transactions?

Node.js is an open source, cross-platform server-side runtime environment built on the JavaScript runtime environment. It uses an event-driven, non-blocking I/O model, which makes it perform very well when handling high-concurrency applications and large-scale data flows. In modern web application architecture, the database is a very important component. Database transactions are very necessary when performing large-scale, highly concurrent data operations. So, does Node.js support database transactions? A database transaction refers to a set of database

May 27, 2023 pm 10:42 PM

Nodejs implements uploading files

Node.js is a popular JavaScript runtime environment that allows developers to write server-side applications using JavaScript. In this article, we will learn the process of file upload using Node.js. For web applications that need to upload files, Node.js can use the following methods: 1. Using the native HTTP module Using the HTTP module that comes with Node.js, we can write code to handle requests to upload files. Here's a simple example: ```cons

May 27, 2023 pm 10:40 PM

Query nodejs installation directory

When developing with Node.js, you often need to query the Node.js installation directory for related configuration and operations. In this article, we will discuss how to query the Node.js installation directory and introduce related configuration and operations. 1. Find the installation directory of Node.js. Use the command line to find the installation directory of Node.js, which may vary depending on the operating system. Under the Windows operating system, you can use the following method to find the installation directory of Node.js

May 27, 2023 pm 10:39 PM

How to start nodejs on the server

Starting Node.js on the server allows us to deploy Node.js applications in Linux or Unix systems to provide services to users. Configuring the Node.js server requires us to master basic Linux commands and Node.js programming knowledge. The following are the steps to start Node.js on the server: 1. Install the Node.js environment In Linux or Unix systems, we need to use Bash Shell or terminal to execute commands. Enter the following command at the command line: ```sudo

May 27, 2023 pm 10:36 PM

nodejs queue implementation

Node.js is a JavaScript runtime environment based on the Chrome V8 engine that uses an event-driven, non-blocking I/O model designed to improve scalability and performance. Node.js is widely used in web servers and command line tools. In Node.js, a queue is a common data structure that processes elements in a first-in, first-out (FIFO) manner. Using queues can solve many practical problems, such as caching, task scheduling, message delivery, etc.

May 27, 2023 pm 10:35 PM

How to perform version testing in nodejs

Node.js is a popular server-side JavaScript runtime environment that is open source and cross-platform. With each release, Node.js adds new features and fixes existing issues, so it's important to understand how to test Node.js releases. Here's how to test Node.js versions using NVM (Node.js Version Manager) and NPM (Node.js Package Manager). ## Test version using NVM NVM is a tool for managing multiple Node.js versions on the same system

May 27, 2023 pm 10:30 PM

nodejs installation restarts repeatedly

Node.js is a very popular server-side JavaScript runtime environment. As a developer, you may encounter the problem of repeated restarts of your Node.js installation. This question may confuse and annoy you. In this article, we’ll dive into the various possible causes of this problem and provide solutions. ## 1. Confirm the system environment Before installing Node.js, you should first confirm the system environment. Node.js needs to run on a compatible operating system, such as Windows

May 27, 2023 pm 10:00 PM

Nodejs does not require a framework

Node.js is a lightweight, open source, cross-platform JavaScript runtime environment that allows developers to write server-side applications using JavaScript. It is efficient, fast, and scalable, so it is favored and liked by many developers. When using Node.js to develop applications, you can choose to use a framework or not. Node.js's framework-free development method allows developers to architect and develop projects more freely and flexibly.

May 27, 2023 pm 09:57 PM

How to install nodejs on the intranet

Installing Node.js on an intranet is usually more complicated than installing it on a public network. In an intranet environment, due to network environment limitations, we usually cannot download and install software directly from the Internet. Therefore, we need to take some special methods to install Node.js on the intranet. This article will introduce several methods for installing Node.js in the intranet environment and help you complete the quick installation of Node.js in the intranet environment. Method 1: Download the offline installation package In an intranet environment, we cannot directly download the Node.js installation package from the official website. but

May 27, 2023 pm 09:56 PM