What is JavaScript shorthand property? [duplicate]

Answer 1

Since there is no official explanation from MDN I can only assume what this might mean.

Consider the following:

There are two ways of creating an array.

The long way (sort of):

var cars = new Array("Saab", "Volvo", "BMW");

The short way:

var cars = ["Saab", "Volvo", "BMW"]; 

The long and short way is more obvious when dealing with the creation of objects:

The long way:

var person = new Object();
person.firstName = "John";
person.lastName = "Doe";

The short way:

var person = {firstName: "John", lastName: "Doe"};