Question

我知道我没有正确分开。我知道我需要尝试替换逗号后没有空格。

CSV文件：

if(isFinite(a)){
  alert('This is number.');
}
else alert('This is not number.')

movieId,title,genre
1,"American President, The (1995)",Comedy|Drama|Romance
2,"Creation, The creator(xxxx)",Comedy|Drama|Romance
3,"Destruction, The destroyer(xxxxx)",Comedy|Drama|Romance

function csv_json(csvFile) {
    const _ = require('lodash');
    const fs = require('fs')
    const csvData = fs.readFileSync(csvFile, 'utf8');
    'use strict';

    var csvObject = csvToObjectArray(csvData);

    // console.log(csvObject);

    function csvToObjectArray(data) {
        var csvRowArray    = data.split(/\n/); // spilt by new lines
        var headerCellArray = trimQuotes(csvRowArray.shift().split(','));
        var objectArray     = [];

        while (csvRowArray.length) {

            var rowCellArray = trimQuotes(csvRowArray.shift().split(','));
            var rowObject    = _.zipObject(headerCellArray, rowCellArray);
            objectArray.push(rowObject);
        }
        return objectArray;
    }

    function trimQuotes(stringArray) {
        for (var i = 0; i < stringArray.length; i++) {
            stringArray[i] = _.trim(stringArray[i], '"');
        }
        return stringArray;
    }
    return csvObject
}

module.exports = csv_json ;

我希望：

//js file

const mod = require('./syncCsv_Json.js');
const data = mod('./movieTest.csv')
const fs = require('fs')


 console.log(data)
/*
output:
[ { movieId: '1',
    title: 'American President',
    genre: ' The (1995)' },
  { movieId: '2', title: 'Creation', genre: ' The creator(xxxx)' },
  { movieId: '3',
    title: 'Destruction',
    genre: ' The destroyer(xxxxx)' },
  { movieId: '', title: undefined, genre: undefined } ]
*/

Answer 1

由于字段可以包含定界符（逗号），所以简单的行拆分是没有用的。因此，最好使用已经证明的解析器和转换器。例如，Keyang/node-csvtojson：

csv()
  .fromString(`movieId,title,genre
1,"American President, The (1995)",Comedy|Drama|Romance
2,"Creation, The creator(xxxx)",Comedy|Drama|Romance
3,"Destruction, The destroyer(xxxxx)",Comedy|Drama|Romance`)
  .subscribe((jsonObj) => {
    jsonObj.genre = jsonObj.genre.split('|')
  })
  .then(function(res) {
    console.log(res)
  })

<script src="https://cdn.rawgit.com/Keyang/node-csvtojson/d41f44aa/browser/csvtojson.min.js"></script>

如何修复模块以获得正确的输出？

1 个答案: