使用Angular触发CSV文件下载

const data = [
  { name: 'John', age: 25, city: 'New York' },
  { name: 'Jane', age: 30, city: 'London' },
  { name: 'Bob', age: 35, city: 'Paris' }
];

function convertToCSV(data: any[]): string {
  const header = Object.keys(data[0]).join(',') + '\n';
  const rows = data.map(obj => Object.values(obj).join(',')).join('\n');
  return header + rows;
}

function downloadCSV() {
  const csvContent = convertToCSV(data);
  const blob = new Blob([csvContent], { type: 'text/csv' });
  const url = URL.createObjectURL(blob);
  const link = document.createElement('a');
  link.href = url;
  link.download = 'data.csv';
  link.click();
  URL.revokeObjectURL(url);
}

<button (click)="downloadCSV()">Download CSV</button>