如果行太多,Chrome无法导出到csv？

Question

我写了这个导出按钮,它基本上将我在谷歌表上的所有数据都吐出成CSV供下载.它工作得非常好,直到我有太多行,当我尝试下载csv时,Chrome会给我"aw snap"错误页面.我该如何解决？

    var csvContent = "data:text/csv;charset=utf-8,";

    data.forEach(function (infoArray, index) {
        dataString = infoArray.join(",");
        csvContent += dataString + "\n";
    });

    var encodedUri = encodeURI(csvContent);
    var link = document.createElement("a");
    link.setAttribute("href", encodedUri);
    link.setAttribute("download", "Data.csv");
    link.click();

Answer 1

Chrome只能处理大约200万字符长(或更短)的HREF.

您希望将输出添加到Blob,然后在该Blob上使用URL.createObjectURL(MDN)创建ObjectURL 并将其附加到锚点的href属性.

一个例子可能是:

var csvContent = "";

data.forEach(function (infoArray, index) {
    dataString = infoArray.join(",");
    csvContent += dataString + "\n";
});

var blobdata = new Blob([csvContent],{type : 'text/csv'});
var link = document.createElement("a");
link.setAttribute("href", window.URL.createObjectURL(blobdata));
link.setAttribute("download", "Data.csv");
document.body.appendChild(link);
link.click();