我正在尝试使用PapaParse解析本地文件,但控制台返回未定义。另外,如果我注释掉download:true
,控制台将返回一个空数组。我将本地文件作为参数传递的方式是否存在问题,因为在异步代码Papa.parse('./Clean.csv',{})
中有效
const parseData = (content) => {
let data;
return new Promise((resolve) => {
Papa.parse(content, {
header: true,
download: true,
delimiter: ',',
dynamicTyping: true,
complete: (results) => {
data = results.data;
}
});
resolve(data);
});
};
parseData('./Clean.csv')
.then(results => console.log(results));
答案 0 :(得分:0)
您可以将文件流传递给Papa Parse,这对于服务器端代码非常有用:
const Papa = require('papaparse');
const fs = require('fs');
const parseData = (content) => {
const fileStream = fs.createReadStream(content);
return new Promise((resolve) => {
Papa.parse(fileStream, {
header: true,
delimiter: ',',
dynamicTyping: true,
complete: (results) => {
resolve(results);
}
});
});
};
parseData('./Clean.csv')
.then(results => console.log(results));