ES6的一个箭头函数:

const dataToCsvURI = (data) => encodeURI(
`data:text/csv;charset=utf-8,${data.map((row, index) =>  row.join(',')).join(`\n`)}`
);

然后:

window.open(
  dataToCsvURI(
   [["name1", "city_name1"/*, ...*/], ["name2", "city_name2"/*, ...*/]]
  )
);

如果有人在reactjs中需要这个，react-csv就在那里

人们尝试创建自己的csv字符串，在边缘情况下失败，例如特殊字符，这肯定是一个解决的问题，对吧?

papaparse -用于JSON到CSV编码。Papa.unparse()。

import Papa from "papaparse";

const downloadCSV = (args) => {  

  let filename = args.filename || 'export.csv';
  let columns = args.columns || null;

  let csv = Papa.unparse({ data: args.data, fields: columns})
  if (csv == null) return;

  var blob = new Blob([csv]);
  if (window.navigator.msSaveOrOpenBlob)  // IE hack; see http://msdn.microsoft.com/en-us/library/ie/hh779016.aspx
      window.navigator.msSaveBlob(blob, args.filename);
  else
  {
      var a = window.document.createElement("a");
      a.href = window.URL.createObjectURL(blob, {type: "text/plain"});
      a.download = filename;
      document.body.appendChild(a);
      a.click();  // IE: "Access is denied"; see: https://connect.microsoft.com/IE/feedback/details/797361/ie-10-treats-blob-url-as-cross-origin-and-denies-access
      document.body.removeChild(a);
  }

}

示例使用

downloadCSV({ 
  filename: "filename.csv",
  data: [{"a": "1", "b": "2"}],
  columns: ["a","b"]
});

https://github.com/mholt/PapaParse/issues/175 -请参阅此评论了解浏览器支持讨论。

下面是一个原生的js解决方案。

function export2csv() { let data = ""; const tableData = []; const rows = [ ['111', '222', '333'], ['aaa', 'bbb', 'ccc'], ['AAA', 'BBB', 'CCC'] ]; for (const row of rows) { const rowData = []; for (const column of row) { rowData.push(column); } tableData.push(rowData.join(",")); } data += tableData.join("\n"); const a = document.createElement("a"); a.href = URL.createObjectURL(new Blob([data], { type: "text/csv" })); a.setAttribute("download", "data.csv"); document.body.appendChild(a); a.click(); document.body.removeChild(a); } <button onclick="export2csv()">Export array to csv file</button>

基于上面的答案，我创建了这个函数，并在IE 11、Chrome 36和Firefox 29上进行了测试

function exportToCsv(filename, rows) {
    var processRow = function (row) {
        var finalVal = '';
        for (var j = 0; j < row.length; j++) {
            var innerValue = row[j] === null ? '' : row[j].toString();
            if (row[j] instanceof Date) {
                innerValue = row[j].toLocaleString();
            };
            var result = innerValue.replace(/"/g, '""');
            if (result.search(/("|,|\n)/g) >= 0)
                result = '"' + result + '"';
            if (j > 0)
                finalVal += ',';
            finalVal += result;
        }
        return finalVal + '\n';
    };

    var csvFile = '';
    for (var i = 0; i < rows.length; i++) {
        csvFile += processRow(rows[i]);
    }

    var blob = new Blob([csvFile], { type: 'text/csv;charset=utf-8;' });
    if (navigator.msSaveBlob) { // IE 10+
        navigator.msSaveBlob(blob, filename);
    } else {
        var link = document.createElement("a");
        if (link.download !== undefined) { // feature detection
            // Browsers that support HTML5 download attribute
            var url = URL.createObjectURL(blob);
            link.setAttribute("href", url);
            link.setAttribute("download", filename);
            link.style.visibility = 'hidden';
            document.body.appendChild(link);
            link.click();
            document.body.removeChild(link);
        }
    }
}

例如: https://jsfiddle.net/jossef/m3rrLzk0/

您可以在原生JavaScript中做到这一点。你必须把你的数据解析成正确的CSV格式(假设你在问题中描述的数据使用数组的数组):

const rows = [
    ["name1", "city1", "some other info"],
    ["name2", "city2", "more info"]
];

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

rows.forEach(function(rowArray) {
    let row = rowArray.join(",");
    csvContent += row + "\r\n";
});

或者更简单的方法(使用箭头函数):

const rows = [
    ["name1", "city1", "some other info"],
    ["name2", "city2", "more info"]
];

let csvContent = "data:text/csv;charset=utf-8," 
    + rows.map(e => e.join(",")).join("\n");

然后就可以使用JavaScript的窗口了。open和encodeURI函数下载CSV文件，如下所示:

var encodedUri = encodeURI(csvContent);
window.open(encodedUri);

编辑:如果你想给你的文件一个特定的名字，你必须做一些不同的事情，因为这是不支持访问一个数据URI使用窗口。开放的方法。为了实现这一点，你可以创建一个隐藏的<a> DOM节点，并将其下载属性设置如下:

var encodedUri = encodeURI(csvContent);
var link = document.createElement("a");
link.setAttribute("href", encodedUri);
link.setAttribute("download", "my_data.csv");
document.body.appendChild(link); // Required for FF

link.click(); // This will download the data file named "my_data.csv".

ES6的一个箭头函数:

const dataToCsvURI = (data) => encodeURI(
`data:text/csv;charset=utf-8,${data.map((row, index) =>  row.join(',')).join(`\n`)}`
);

然后:

window.open(
  dataToCsvURI(
   [["name1", "city_name1"/*, ...*/], ["name2", "city_name2"/*, ...*/]]
  )
);

如果有人在reactjs中需要这个，react-csv就在那里