Function allBlank

src/layout-manager.js:81–88

(rows, y, xMin, xMax)

  }

  function allBlank(rows, y, xMin, xMax) {
    for (let x = xMin; x < xMax; x++) {
      if (conflictExists(rows, x, y)) {
        return false;
      }
    }
    return true;
  }

  function addRowSpanCells(table) {
    table.forEach(function (row, rowIndex) {