如何获取表格中所有正值的最小值？

function getMinPositiveValue(table) {
  let minValue = null;

  for (let i = 0; i < table.length; i++) {
    for (let j = 0; j < table[i].length; j++) {
      const cellValue = table[i][j];
      if (cellValue > 0) {
        if (minValue === null || cellValue < minValue) {
          minValue = cellValue;
        }
      }
    }
  }

  return minValue;
}

// 示例表格
const table = [
  [1, -2, 3],
  [4, 5, -6],
  [-7, 8, 9]
];

const minPositiveValue = getMinPositiveValue(table);
console.log(minPositiveValue); // 输出结果为 1