1️⃣ Nullish Coalescing '??' It returns its right-hand side operand when its left-hand side operand is null or undefined and otherwise returns its lef
Constructor When we need to create many similar objects. They are named with capital letter first. They should be executed only with "new" operator.
To access the object, a method can use the this keyword.✔️ Risky wayIt’s possible to access the object without this, by referencing it via the outer v