@thi.ng/grid-iterators/column-ends.js

2D grid and shape iterators w/ multiple orderings

import { __opts } from "./utils.js";
function* columnEnds2d(opts) {
  let { cols, rows, tx } = __opts(opts);
  rows--;
  for (let x = 0; x < cols; x++) {
    yield tx(x, 0);
    yield tx(x, rows);
  }
}
export {
  columnEnds2d
};