Javascript

What is ‘__dirname’?

The **dirname in a node script returns the path of the folder where the current JavaScript file resides. **filename and __dirname are used to get the filename and directory name of the currently executing file.

When I use express.js as a backend, I faced some issues with ‘__dirname’.

Immutable??

An immutable object is one whose content cannot be changed. An object can be immutable for various reasons, for example:

What is Ajax?

AJAX stands for Asynchronous JavaScript And XML. In a nutshell, it is the use of the XMLHttpRequest object to communicate with servers. It can send and receive information in various formats, including JSON, XML, HTML, and text files. AJAX’s most appealing characteristic is its “asynchronous” nature, which means it can communicate with the server, exchange data, and update the page without having to refresh the page.