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In javascript it always bothered me people use objects as vectors like {x: 1, y: 2} instead of using an array [1,2]. Access time for the array is much faster than the object but accessing by index is more confusing especially if you need a large array. I know dart has fixed arrays but is there a way to name the offsets of an array like you would a struct or a tuple/record in another language? Define enum/constants maybe?
I'd want something like
List<int> myVector = new List([x,y]); myVector.x = 5; is there an equivalent or idiomatic way to do this?
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Basic Data Structures in Dart These include `List`, `Map` and `Set`. Understanding how they function will give you a foundation to work from as you proceed through the book and begin creating your own data structures from scratch.
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That sounds like a class.
class MyVector { int x; int y; MyVector(this.x, this.y); } There is no simpler and more efficient way to create a name-indexed structure at runtime. For simplicity you could usually use a Map, but it's not as efficient as a real class.
A class should be at least as efficient (time and memory) as a fixed length list, after all it doesn't have to do an index bounds check.
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