In code, this concept can sometimes be lost in the syntax. We can see how prototypal inheritance works on the basis of specifying categories within a group from least specific to most – from rectangle to square.
We could not, however, construct this same concept using the square as a prototype, because there are properties of a square that do not apply to rectangles (i.e. four-sides and closed), while also adding a new feature (i.e.
If we think of this as a JS program, we could say that the rectangle is a prototype to the square: the square inherits all properties of a rectangle (i.e. Let’s walk through an example of prototypical inheritance you’re likely familiar with from grade school: all squares are rectangles, but not all rectangles are squares.
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