What is Global In Node JS

Node.js global objects are global in nature and available in all modules. You don't need to include these objects in your application; rather they can be used directly. These objects are modules, functions, strings and object etc. Some of these objects aren't actually in the global scope but in the module scope.

A list of Node.js global objects are given below:

__dirname

__filename

Console

Process

Buffer

setImmediate(callback[, arg][, ...])

setInterval(callback, delay[, arg][, ...])

setTimeout(callback, delay[, arg][, ...])

clearImmediate(immediateObject)

clearInterval(intervalObject)

clearTimeout(timeoutObject)

Node.js __dirname

It is a string. It specifies the name of the directory that currently contains the code.

references:

https://www.javatpoint.com/nodejs-global-objects#:~:text=js%20Global%20Objects-,Node.,functions%2C%20strings%20and%20object%20etc.