js将数据写入json文件

// 假设我们有以下数据对象
const data = {
  name: "John Doe",
  age: 30,
  email: "john.doe@example.com"
};

// 将数据对象转换为JSON字符串
const jsonString = JSON.stringify(data, null, 2);

// 创建一个Blob对象
const blob = new Blob([jsonString], { type: 'application/json' });

// 使用File System Access API请求写入文件
const handle = await window.showSaveFilePicker({
  suggestedName: 'data.json',
  types: [{
    description: 'JSON files',
    accept: {
      'application/json': ['.json'],
    },
  }],
});

const writable = await handle.createWritable();
await writable.write(blob);
await writable.close();

console.log('Data has been written to file successfully.');

try {
  // 尝试写入文件的代码...
} catch (error) {
  if (error.name === 'AbortError') {
    console.error('File operation was aborted by the user.');
  } else if (error.name === 'NotAllowedError') {
    console.error('Permission to access the file system was denied.');
  } else {
    console.error('An unexpected error occurred:', error);
  }
}