In this lecture, we will talk about an important concept:

JS ON SERVER

Q: What is a server?

A server is essentially a remote computer. You can think of it as a computer whose CPU works remotely.

Servers can be accessed over a network to provide resources and services to other computer programs.

A server is a computer or system that provides data, services, resources, or programs to other computers, known as clients, over a network.

Behind the scenes, when a computer needs to communicate with a server, it sends a request to the server using its IP address. Initially, JavaScript could only be executed within web browsers, limiting its use to client-side tasks. However, with the introduction of Node.js, JavaScript can now also be executed on servers, allowing developers to use the same language for both client-side and server-side programming.

Q: What is IP address?

An IP address, or Internet Protocol address, is a unique number that identifies every device connected to the internet.

Q: What is v8?

• The V8 JavaScript engine is written in C++. ‣
• V8 can be embedded into any C++ program, which is a crucial feature.
• The process works as follows: JavaScript code is executed by V8 (written in C++), which then compiles it down to machine code that the computer can execute.