You are creating a custom object as described by the following code.
You need to implement the calcArea method.
Which code should you use?
A.
Option A
B.
Option B
C.
Option C
D.
Option D
Which code should you use?
You are creating a custom object as described by the following code.
You need to implement the calcArea method.
Which code should you use?
Both variants C and D are currect.
function sqr2(){
return a * a;
}
function sqr(a){
this.a = a;
this.sqr2 = sqr2;
console.log(this.sqr2());
}
sqr(2); //4
function sqr2(){
return this.a * this.a;
}
function sqr(a){
this.a = a;
this.sqr2 = sqr2;
console.log(this.sqr2());
}
sqr(2); //4
Option B is a valid method too.
function square(side) {
this.side = side;
this.area = calcArea;
}
function calcArea(obj) {
return obj.side * obj.side;
}
var sq = new square(10);
console.log(calcArea(sq));
D options requires the using of “call” method.
Which is the right answer?