More kinds of Methods Reference Error


#1


Hello! I'm stuck on More Kinds of Methods and I am receiving the following reference error:

ReferenceError: sideLength is not defined

I'm not sure why I'm getting this error, my calcArea function looks almost identical to calcPerimeter

Help!


var square = new Object();
square.sideLength = 6;

square.calcPerimeter = function() {
  return this.sideLength * 4;
};

// help us define an area method here
square.calcArea = function() {
    return this.sideLength * sideLength;
};

var p = square.calcPerimeter();
var a = square.calcArea(10);


#2

Wait, I got it!

instead of

return this.sideLength * sideLength

it should be

return this.sideLength * this.sideLength


#3

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