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There are two types of API functions in Node.js: Asynchronous, Non-blocking functions Synchronous, Blocking functions In Node.js, there are primarily two types of API functions: Asynchronous, Non-blocking Functions: These functions do not block the execution of the code. They typically accept a callback function as an argument to be executed once the operation is completed … Read more

I/O stands for input and output. It accesses anything outside of your application. It loaded into the machine memory to run the program, once the application starts. In the context of Node.js, I/O (Input/Output) refers to the processes of reading and writing data to and from external sources such as files, networks, or databases. In … Read more

A web application distinguishes into 4 layers: Client Layer: The Client layer contains web browsers, mobile browsers or applications which can make an HTTP request to the web server. Server Layer: The Server layer contains the Web server which can intercept the request made by clients and pass them the response. Business Layer: The business … Read more

Following are the main advantages of Node.js: Node.js is asynchronous and event-driven. All API?s of Node.js library are non-blocking, and its server doesn’t wait for an API to return data. It moves to the next API after calling it, and a notification mechanism of Events of Node.js responds to the server from the previous API … Read more

These are the following purposes of Node.js: Real-time web applications Network applications Distributed systems General purpose applications The purpose of Node.js is to provide a runtime environment for executing JavaScript code on the server-side. It allows developers to build scalable and efficient network applications, particularly web servers, using JavaScript, which was traditionally limited to client-side … Read more