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This article mainly explains "the advantages and functions of node.js". the explanation content in this article is simple and clear, easy to learn and understand. please follow the ideas of Xiaobian and go deep into it slowly to study and learn "the advantages and functions of node.js" together!

Operating environment of this tutorial: Windows 7 system, nodejs 14.15.4 & vue 2.9.6 version, DELL G3 computer.

What is NodeJS?

Node.js is a JavaScript runtime environment based on Chrome V8 engine. Node.js uses an event-driven, non-blocking I/O model.

Node is a development platform that allows JavaScript to run on the server side, making JavaScript a scripting language on an equal footing with PHP, Python, Perl, Ruby, and other server-side languages. Released in May 2009, it was developed by Ryan Dahl and essentially encapsulates the Chrome V8 engine.

Node optimizes for special use cases and provides alternative APIs that make V8 work better in non-browser environments. The V8 engine executes Javascript very fast and performs very well.

Node is a platform built on the Chrome JavaScript runtime for building responsive, easy-to-scale web apps. Node uses an event-driven, non-blocking I/O model to be lightweight and efficient, ideal for running data-intensive real-time applications on distributed devices.

Advantages of node.js

1. Nodejs syntax is completely js syntax, as long as you understand js basics, you can learn Nodejs backend development.

Node breaks the old rule that JavaScript can only run in the browser. The unified programming environment can greatly reduce development costs.

2, NodeJs super high concurrency ability

The primary goal of NodeJs is to provide a simple development tool for creating high-performance servers and the applications that can run on them.

Let's first look at what's wrong with server-side languages today. In server languages such as Java, PHP, or. NET, a new thread is created for each client connection. Each thread consumes approximately 2MB of memory. In other words, theoretically, a server with 8GB of memory can connect to a maximum of 4000 users at the same time. To make a web application support more users, you need to increase the number of servers, and of course the hardware cost of the web application goes up.

NodeJs doesn't create a new thread for each client connection, but uses only one thread. When a user connects, an internal event is triggered, and through non-blocking I/O, event-driven mechanisms, Node.js programs are also macroscopically parallel. Using Node.js, a server with 8GB of memory can handle connections for more than 40,000 users simultaneously.

3. Implement high-performance servers

Strictly speaking, Node.js is a development tool for developing various web servers. In the Node.js server, running is the high-performance V8 JavaScript scripting language, a scripting language that can be run on the server side.

What can Node.js do?

What is VueJS?

Vue (pronounced/vju $>/, similar to view) is a progressive JavaScript framework for building user interfaces. Unlike other large frameworks, Vue is designed to be applied layer by layer from the bottom up. Vue's core library focuses only on the view layer, making it easy to integrate with third-party libraries or existing projects.

Vue.js is a progressive framework for building user interfaces. Unlike other heavyweight frameworks, Vue is designed for bottom-up incremental development. Vue's core library focuses only on the view layer and is very easy to learn and integrate with other libraries or existing projects.

Vue, on the other hand, is fully capable of driving complex single-page applications developed with single-file components and libraries supported by the Vue ecosystem.

The goal of Vue.js is to implement responsive data binding and composed view components through the simplest possible API.

Vue.js itself is not an omnipotent framework--it focuses only on the view layer. So it's very easy to learn and very easy to integrate with other libraries or existing projects. On the other hand, Vue.js is also perfect for driving complex single-page applications when used with related tools and support libraries.

What are the advantages of Vue.js

What advantages does Vue have over other frameworks? We have already mentioned jQuery above, but there are other front-end frameworks such as React, Angular, etc. Vue, by contrast, is the lightest, and has formed a complete ecosystem that can be updated iteratively quickly.

As the preferred entry framework for front-end developers, Vue has many advantages:

Vue.js allows component-based development, which greatly reduces the amount of code written and makes it easier for readers to understand.

One of Vue.js's greatest strengths is its ability to bind data in both directions (we'll see how convenient this feature is later).

The interface effects written in Vue.js are inherently responsive, which makes the web pages look great on a variety of devices.

Vue does not refresh pages using routing, as opposed to traditional page switching and jumping through hyperlinks.

Thank you for reading, the above is the "advantages and role of node.js" content, after the study of this article, I believe that everyone has a deeper understanding of the advantages and role of node.js, the specific use of the situation also needs to be verified by practice. Here is, Xiaobian will push more articles related to knowledge points for everyone, welcome to pay attention!

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