Node.js is a very popular server-side JavaScript runtime environment that uses the Google V8 engine to interpret JavaScript code. Unlike languages such as Java and C, Node.js does not require compilation and its running mode is interpreted. This feature makes it the first choice of many developers.
Why does Node.js not need to be compiled?
In traditional compiled languages (such as C and Java), developers need to write source code and then compile it into an executable file suitable for a specific operating system and hardware architecture. These executable files contain the complete binary code of the program and all required libraries and dependencies.
However, Node.js is not a compiled language. In Node.js, JavaScript code is executed directly without being pre-compiled into an executable file. The framework of Node.js takes advantage of the power of the V8 engine to convert JavaScript code into machine code and execute it.
In addition, the Node.js running environment itself already contains many common libraries and dependencies, which are called "built-in modules". These built-in modules can be used directly in JavaScript code without manual import or configuration.
The way Node.js operates also brings other benefits. Since JavaScript is a dynamic language, it supports flexible runtime logic and data type checking. This means developers can develop and debug more easily at the language level and respond more quickly to different code needs.
Additionally, JavaScript’s flexibility and readability make it an extremely suitable language for developing web applications. Node.js has a powerful asynchronous programming model that can greatly improve the responsiveness and scalability of web applications.
Node.js also provides ideal support for microservices and cloud-native applications. Developers can use lightweight module architecture and modern web service architectures such as REST API to build distributed applications, making them easier to implement and meet maintainability and deployment needs.
Of course, Node.js also has its shortcomings. For applications that rely heavily on CPU computing and memory management, the dynamic nature of JavaScript itself may cause performance degradation. In this case, using another compiled language or using Node.js' subprocess module may be a better option.
Conclusion
Node.js does not require compilation, which is one of its important features. This saves developers from having to spend time compiling code or writing code for different operating systems and hardware architectures. This is one of the reasons why Node.js is one of the top choices for web application development. As Node.js is used in distributed applications and cloud computing-based contexts, you can expect it to continue to grow rapidly in the future and bring more innovation to the web ecosystem.
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