JavaScript - 5

 

Call stack

call stack mdn

Js is Single Threaded

Promises

The Promise object represents the eventual completion (or failure) of an asynchronous operation

and its resulting value.

es await ko use kakke color wala code ko aur chota kar sakte hai, but reject hone par kese handel kar-niche dhekho-

Await Keyword

Handling Rejections with Await