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JavaScript Object-Oriented JavaScript (2015) Practice Project Object-Oriented JavaScript Review

Posted by Andrew Alvarez
Andrew Alvarez
11,964 Points

Fill in The Blank

function Shape(sides) { this.sides = sides; }

function Square() { Shape.call(_____, 4); }

Square.prototype = Object.create(Shape.prototype);

Eric Trego
Eric Trego
15,308 Points

this one got me for a while to, i believe it should be a "." and not a ",". but it is this.

1 Answer

alexlitel
alexlitel
25,059 Points
alexlitel
alexlitel
25,059 Points

Andrew Alvarez The answer in this instance would be this. As explained in an earlier video, the .call method allows us to inherit similar properties from another object, and in order to do so, we must first declare this. As Square is a Shape, we will inherit the sides property from shape.