js怎么去除重复行

function removeDuplicateLines(inputStr) {
  // 按行分割字符串为数组
  let lines = inputStr.split('
');
  // 使用 Set 去重
  let uniqueLines = [...new Set(lines)];
  // 将数组重新拼接为字符串
  return uniqueLines.join('
');
}

let data = `line1
line2
line1
line3
line2`;

let result = removeDuplicateLines(data);
console.log(result);