2 Comments on “Which code should you use?”

1. Vitalii Shevchuk says:

   April 19, 2016 at 5:51 pm

   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

   
   
   
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2. Loris says:

   February 22, 2018 at 9:52 am

   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?

   
   
   
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