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How to import correctly in nodejs

Node.js is a development platform that gives JavaScript back-end programming capabilities. Unlike JavaScript on the browser side, Node.js can easily reference and use various third-party libraries and plug-ins with the help of NPM (Node.js's own package manager). When using these plug-ins, how to import correctly is a problem that many Node.js developers have to face. Before learning Node.js and NPM, we must first understand Nod

Apr 05, 2023 am 10:30 AM

How to quickly install nodejs on linux

As Node.js becomes more and more popular, more and more developers are using Node.js. If you are a Linux developer and are looking for a quick way to install Node.js on Linux, then this article will help you quickly install Node.js. ## Step 1: Install Node.js In Ubuntu or Debian, you can use the following command to install Node.js: ```sudo apt-get updatesu

Apr 05, 2023 am 10:30 AM

How to send data in nodejs

Node.js is a server-side JavaScript environment based on the Chrome V8 engine. Using Node.js allows front-end developers to write back-end code with JavaScript, thereby achieving front-end and back-end JavaScript consistency. In Node.js, you can use the HTTP module to send data, or you can use third-party modules such as Request, SuperAgent, etc. to send data. 1. Use the HTTP module to send data. The HTTP module of Node.js is

Apr 05, 2023 am 10:30 AM

Does nodejs not support let const?

Node.js does not support let and const Node.js is an open source platform based on JavaScript that runs on the server side. It allows developers to write server-side programs using JavaScript, similar to server-side languages such as PHP, Python, and Ruby. Node.js was created by Ryan Dahl in 2009 and has become a popular server-side JavaScript platform. Although Nod

Apr 05, 2023 am 10:29 AM

How to modify the image in nodejs

How to modify the image of Node.js When using Node.js, installing dependent packages often requires access to foreign npm official sources. Due to network reasons, the installation package may be very slow or the installation may fail. To do this, we need to set the npm mirror source to a domestic mirror to increase download speed. 1. npm mirror address | address | website || ------------ | ----

Apr 05, 2023 am 10:29 AM

How to access oralce in nodejs

How Node.js Accesses Oracle Node.js is a very popular JavaScript runtime environment that enables server-side programming. It is very fast and flexible compared to other languages and has the ability to handle I/O intensive tasks. In addition to this, Node.js also excels when interacting with databases. In this article, we will learn how to access and operate Oracle database using Node.js. Before using Node.js to connect to the Oracle database, we need to

Apr 05, 2023 am 10:29 AM

How to install Node.js in Cenos7

Install Node.js in Cenos7 Node.js is a development platform for building high-performance web applications using JavaScript. Created by Ryan Dahl in 2009, it uses an event-driven, non-blocking I/O model, allowing it to easily handle large numbers of concurrent connections. Cenos7 is a popular Linux operating system with rich features and excellent performance, so it is often used to build high-performance network applications. In this article, we will explain how to install

Apr 05, 2023 am 10:29 AM

How to convert and format time in Node.js

Introduction to Node.js Time Transformation Node.js is an open source tool for writing server-side code using JavaScript. In Node.js, time processing and formatting are very common operations. In this article, we will explore how to convert and format time in Node.js. Timestamps When writing Node.js code, you usually encounter many timestamp operations. Unix timestamps refer to the time since January 1, 1970 00:00:00 UTC

Apr 05, 2023 am 10:29 AM

How to set default value of dropdown box in Node.js

Node.js is a JavaScript runtime environment based on the Chrome V8 engine that can be used for both server-side programming and command-line tools. This technology is efficient, powerful, and easy to develop, so it is widely welcomed by developers. In Node.js, processing form data is a very common operation, and the drop-down box is a common form element. Drop-down boxes are generally used to provide multiple options, and users can select one of the options to achieve a specific function. In some scenarios, we need to default the drop-down box

Apr 05, 2023 am 10:29 AM

What does nodejs do?

Node.js is a JavaScript running environment based on the chrome V8 engine. It can run JavaScript code on the server side, and developers can use it to handle daily tasks such as file uploads, database management, interacting with other APIs, and more. The creator of Node.js is Ryan Dahl. He released Node.js version 0.1.0 in 2009. Prior to launch, web applications could only use JavaScript in the browser, node.j

Apr 05, 2023 am 10:29 AM

How to run a nodejs project after getting it

In recent years, with the continuous development of front-end technology, Node.js has become one of the technology stacks used by more and more developers. As a beginner, it is relatively difficult to get a Node.js project and run it. Then, the following will describe how to run a Node.js project from the three steps of project preparation, project installation and operation. 1. Project preparation Before officially starting to run the Node.js project, you first need to prepare the environment and tools. Node.js is a J based on Chrome V8 engine

Apr 05, 2023 am 10:29 AM

How to perform database query in nodejs

Node.js is a JavaScript running environment based on the Chrome V8 engine that can be used to develop web applications. One of the main advantages of Node.js is its non-blocking I/O mode, which makes it ideal for request-responsive applications. Of course, another important advantage of Node.js is that it supports database query operations. In Node.js, several different databases can be used to store data. Common databases include: MySQL, MongoDB, PostgreSQ

Apr 05, 2023 am 09:11 AM

How to convert mp4 video to animated gif using Node.js

Node.js is a JavaScript running environment based on the Chrome V8 engine. It can run JavaScript code on the server side, which makes it popular in web development. At the same time, Node.js can also be used to perform various processing tasks, including converting mp4 videos to gif animations. In this article, we will learn how to convert mp4 videos to animated gifs using Node.js. First, we need to install some necessary tools. The first step is to install FFmpeg, which is a wide

Apr 05, 2023 am 09:11 AM

Is it important to reference nodejs in css?

CSS is a style sheet language used to design website pages, while Node.js is an open source, cross-platform Javascript runtime environment that runs on the server side. So, is it important to reference Node.js in CSS? To a certain extent, referencing Node.js in CSS can improve website performance and development efficiency. The advantages in two aspects are introduced below. 1. Improve website performance. Website performance has an important impact on user experience and SEO ranking. In the process of optimizing website performance, use Node.js to construct

Apr 05, 2023 am 09:11 AM