Getters & Setters

Question 1

Why are getters useful?

Answer 1

If we have an object which contains a mutable property, we can use a getter to allow access to that property without risking the user mutating the data unintentionally.

Question 2

How do you define a getter?

Answer 2

get students() {
return […this._students]; // A copy of the _students array
},

Question 3

What is the syntax of a setter?

Answer 3

a setter looks like a concise syntax method definition preceded by the keywordset

Question 4

Why can there be a risk of stack overflow with getter?

Answer 4

if the getter has the same name as the thing you are trying to get, you can end up in a recursive loop as the getter ends up calling itself each time it runs.

Question 5

What do setters take?

Answer 5

A setter takes a single argument: the value you want to assign to the property.

Question 6

How do you use getters and setters?

Answer 6

you use setters & getters just like ordinary properties, not methods. In other words, you writestudent.firstName = something,notstudent.firstName(something). or just student.firstName