The short circuiting was meant to stop the further execution based on boolean operations. With Logical AND(&&) operator, if the false value of expression has already been determined than further execution will not happen.
The spread operator ..., introduced first in ES6 became one of the most popular and favourite feature among the developers.
A separate RFC was made for this much widely accepted feature to extend its functionalities to objects, prior it only worked on arrays.
The spread operator ..., introduced first in ES6 became one of the most popular and favourite feature among the developers.
It is much widely accepted that a proposal was made to extend its functionalities to objects, prior it only worked on arrays.
Objects are the foundation of JavaScript and almost everything in JavaScript is considered as object
Lets understand difference between undefined, null and undeclared with examples.
Undefined Undefined means variable or object property is declared but hasn’t been initialized or assigned any value.