（javascript）CSV文件到javascript对象

我是傻瓜。 我需要从csv文件到javascript对象

<<1.csv>>
apple
banana
car

<<2.csv>>
apple
banana

<<3.csv>>
apple
car
day

<<4.csv>>

<<5.csv>>
car

---

我应该怎么做呢？

下面是示例代码

var x = {};

function readCSV(filename, objectKey) {
    var bufferString; 
    fs.readFile(filename,function (err,data) {
        if (err) {
            return console.log(err);
        }

        //Convert and store csv information into a buffer. 
        bufferString = data.toString();

        //create an array that contains each line as an element
        x[objectKey] = bufferString.split('\n');
    });
}

readCSV('1.csv', 'first');
readCSV('2.csv', 'second');
readCSV('3.csv', 'third');
readCSV('4.csv', 'forth');
readCSV('5.csv', 'fifth');

---

fs在此上下文中是未知的…您是在节点或浏览器上运行它吗？如果您在浏览器上运行，文件保存在哪里？如果您正在节点服务器上执行任务，则上面的代码就是一个示例。

var x = {};

function readCSV(filename, objectKey) {
    var bufferString; 
    fs.readFile(filename,function (err,data) {
        if (err) {
            return console.log(err);
        }

        //Convert and store csv information into a buffer. 
        bufferString = data.toString();

        //create an array that contains each line as an element
        x[objectKey] = bufferString.split('\n');
    });
}

readCSV('1.csv', 'first');
readCSV('2.csv', 'second');
readCSV('3.csv', 'third');
readCSV('4.csv', 'forth');
readCSV('5.csv', 'fifth');