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Berry Loeffen
4,303 PointsWhy assigning a constant for instance Point?
Hi there,
When i type in the following:
Point(x: 2, y: 2).surroundingPoints(), this gives the same outcome as:
let coordinatePoint = Point(x: 2, y: 2) and then coordinatePoint.surroundingPoints()
I don't understand what the reason is for declaring the constant coordinatePoint first, since it gives the same answer. Can anyone explain?
Thanks!
Jose Patarroyo
2,953 PointsJose Patarroyo
2,953 PointsHello Berry,
I don't remember why did Passan used the coordinatePoint constant in the video, but the basic difference in the code you wrote is: even though you will get the same answer on both of your examples, in the last one, you are storing the surrounding points in a constant called coordinatePoint which you can use later to perform another calculation. The code on your first example will show you the same answer, but the data is not stored hence, if you need it later in the code, you will have to calculate the surrounding points again and again and again...I think you know where I'm getting at.
So, if you need the data to perform further calculations, you may as well stored it in a constant or variable; if you only need it once, the first line of code you wrote will suffice.