2018/10/19--Javascript导出json数据为csv格式

[Hunter-liu]

在页面中如何将table中的json数据导出为csv文件呢？下面一个方法即可搞定：

csvExport: function(jsonData) {
      const replacer = (key, value) => (value === null ? "" : value);
      const header = Object.keys(jsonData[0]);
      var csv = jsonData.map(row =>
        header
          .map(fieldName => JSON.stringify(row[fieldName], replacer))
          .join(",")
      );
      csv.unshift(header.join(","));
      csv = csv.join("\r\n");
      csv = "data:text/csv;charset=utf-8,\uFEFF" + csv;
      console.log(csv);
      const link = document.createElement("a");
      link.href = encodeURI(csv);
      link.download = `filename.csv`;
      document.body.appendChild(link); // Required for FF
      link.click(); // This will download the data file named 'my_data.csv'.
      document.body.removeChild(link); // Required for FF
    }