问题2-前端json数组数据转换成csv文件

代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>将 JSON 数据导出为 CSV 文件</title>
</head>
<body>

<button id="exportBtn">导出为 CSV</button>

<script>
    document.getElementById('exportBtn').addEventListener('click', function() {
        // 假设这是你的 JSON 数据
        var jsonData = [
            { name: 'John', age: 30, city: 'New York' },
            { name: 'Alice', age: 25, city: 'Los Angeles' },
            { name: 'Bob', age: 35, city: 'Chicago' }
        ];

        // 构建 CSV 数据
        var csvData = '';
        var header = Object.keys(jsonData[0]).join(',') + '\n';
        csvData += header;
        jsonData.forEach(function(item) {
            var row = Object.values(item).join(',') + '\n';
            csvData += row;
        });

        // 创建并下载 CSV 文件
        var blob = new Blob([csvData], { type: 'text/csv;charset=utf-8;' });
        if (navigator.msSaveBlob) { // IE 10+
            navigator.msSaveBlob(blob, 'data.csv');
        } else {
            var link = document.createElement('a');
            if (link.download !== undefined) {
                var url = URL.createObjectURL(blob);
                link.setAttribute('href', url);
                link.setAttribute('download', 'data.csv');
                link.style.visibility = 'hidden';
                document.body.appendChild(link);
                link.click();
                document.body.removeChild(link);
            }
        }
    });
</script>

</body>
</html>