Javascript插入奇怪的newLine字符

let text = "Hello\nWorld\r\n!";
text = text.replace(/\r?\n/g, ''); // 删除所有换行符
console.log(text); // 输出: HelloWorld!

let text = "Hello\nWorld\r\n!";
text = text.replace(/\r\n/g, '\n'); // 将所有\r\n替换为\n
console.log(text); // 输出: Hello\nWorld\n!

<div id="text-container"></div>
<script>
  let text = "Hello\nWorld\r\n!";
  document.getElementById('text-container').textContent = text;
</script>

fetch('https://api.example.com/data')
  .then(response => response.text())
  .then(text => {
    // 清理换行符
    let cleanedText = text.replace(/\r?\n/g, ' ');
    document.getElementById('text-display').textContent = cleanedText;
  })
  .catch(error => console.error('Error fetching data:', error));