What is nodejs used for?

Nodejs The framework is based on the V8 engine, which is currently the fastest Javascript engine. The chrome browser is based on V8, and it can open 20-30 web pages at the same time very smoothly. Express, Nodejs's standard web development framework, can help us quickly build web sites. It is more efficient in development than PHP and has a lower learning curve. Very suitable for small websites, personalized websites.

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Node.js advantages:

1 , using event-driven, asynchronous programming, designed for network services. In fact, Javascript's anonymous functions and closure features are very suitable for event-driven and asynchronous programming. Moreover, JavaScript is easy to learn, and many front-end designers can quickly start doing back-end design.

2. The non-blocking IO processing of Node.js brings high performance and outstanding load capacity with relatively low system resource consumption to Node.js. It is very suitable for use as an intermediary that relies on other IO resources. layer services. 3. Node.js is lightweight and efficient and can be considered a perfect solution for real-time application systems in data-intensive distributed deployment environments. Node is great for situations where you anticipate there may be high traffic before responding to the client, but the required server-side logic and processing isn't necessarily a lot.

Node.js and comparison:

(1) node.js is faster than Java: node.js is fast to develop and runs relatively efficiently, but it will be easier if the project is large. It is messy, and JavaScript is not a statically typed language. Type errors are not known until runtime. Therefore, if you write too much, you will inevitably end up in a situation where you only know there is an error but cannot find where it is. Therefore, the test needs to be better and more accurate. detailed. Java development is slow, but if the project is large and complex, it will be less messy and easier to manage than node.js.

(2) Node.js uses Javascript on both the front and back ends, which represents the future development trend, and java is now the most popular server-side programming language.

(3) Node.js and Java EE - one is an interpreted language and the other is a compiled language.

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