Function getEdgeY

Returns a point on the edge of rectangle

import { Rects } from "https://unpkg.com/ixfx/dist/geometry.js";

const r1 = {x: 10, y: 10, width: 100, height: 50};
Rects.getEdgeY(r1, `right`);  // Yields: 10
Rects.getEdgeY(r1, `bottom`); // Yields: 60

const r2 = {width: 100, height: 50};
Rects.getEdgeY(r2, `right`);  // Yields: 0
Rects.getEdgeY(r2, `bottom`); // Yields: 50

getEdgeY(rect, edge): number
Parameters
- rect: Rect | RectPositioned
- edge:
      | "right"
      | "bottom"
      | "left"
      | "top"
  Which edge: right, left, bottom, top
Returns number