这里有一个小代码，您可以将tsv转换为JSON。它可以帮助你...

ps：这里是typcript，但是你可以很容易的将它转换成vanilla javascript;）

  //将数据集设置为格式对象
 tsvToJson（datas：string）：Array< Object> {
 //将每行分开
让array_datas = datas.split（/ \\\
 | \r | \\\
 / g）; 

 //将每个值分成每行
 var detailed_datas = []; （var i = 0; i  detailed_datas.push（array_datas [i] .split（\t））

} 

 //创建索引
 var index = []; 
 var last_index =; //如果我们正在读取的索引等于，这意味着它可能是一个数组，所以我们取最后一个索引
（var i = 0; i< detail_datas [0] .length; i ++ ）{
 if（detailed_datas [0] [i] ==）index.push（last_index）; 
 else {
 index.push（detailed_datas [0] [i]）; 
 last_index = detailed_datas [0] [i]; 
} 
} 

 //从索引
中分离数据detail_datas.splice（0，1）; 

 //格式数据
 var formated_datas = []; （var i = 0; i< detail_datas.length; i ++）{
 var row = {}; 

 for（var j = 0; j< detail_datas [i] .length; j ++）{
 //检查值是否为空
 if（detailed_datas [i] [j]！= ）{
 if（typeof row [index [j]] ==object）{
 //它已经设置为数组
 row [index [j]]。 （detailed_datas [i] [j]）; 
} else if（row [index [j]]！= undefined）{
 //已经有一个值，所以它可能是一个数组
 row [index [j]] = [ row [index [j]]，detail_datas [i] [j]]; 
} else {
 //现在是空的，所以我们先说一下它是一个字符串
 row [index [j]] = detailed_datas [i] [j]; 
} 
} 
} 
 formated_datas.push（row）; 
} 
 console.log（formated_datas）; // @TODO：remove this 
 return formated_datas; 
} 
 

I want to make a dynamic graph based on a json file. I have seen many examples with tsv but I donot how to convert it to json. That is the part that I want to change from tsv to json but I donot know how!

d3.tsv("data/data.tsv", function(error, data) {
  data.forEach(function(d) {
    d.date = parseDate(d.date);
    d.close = +d.close;
  });

when I use

d3.json("data/data.json", function(data) {
    data.forEach(function d) { 
        d.date = parseDate(d.date);
        d.close = +d.close;
    }

});

it gives this error: Uncaught type error: cannot call method 'forEach' of undefined!

Thanks for your suggestions :)

Here a small code where you'll be able to convert tsv to json. It could help you...

ps : here is typescript, but you can easily convert it to vanilla javascript ;)

// Set bunch of datas into format object
tsvToJson(datas: string): Array<Object>{
    // Separate each lines
    let array_datas = datas.split(/\r\n|\r|\n/g);

    // Separate each values into each lines
    var detailed_datas = [];
    for(var i = 0; i < array_datas.length; i++){
        detailed_datas.push(array_datas[i].split("\t"));
    }

    // Create index
    var index = [];
    var last_index = ""; // If the index we're reading is equal to "", it mean it might be an array so we take the last index
    for(var i = 0; i < detailed_datas[0].length; i++){
        if(detailed_datas[0][i] == "") index.push(last_index);
        else {
            index.push(detailed_datas[0][i]);
            last_index = detailed_datas[0][i];
        }
    }

    // Separate data from index
    detailed_datas.splice(0, 1);

    // Format data
    var formated_datas = [];
    for(var i = 0; i < detailed_datas.length; i++){
        var row = {};
        for(var j = 0; j < detailed_datas[i].length; j++){
            // Check if value is empty
            if(detailed_datas[i][j] != ""){
                if(typeof row[index[j]] == "object"){
                    // it's already set as an array
                    row[index[j]].push(detailed_datas[i][j]);
                } else if(row[index[j]] != undefined){
                    // Already have a value, so it might be an array
                    row[index[j]] = [row[index[j]], detailed_datas[i][j]];
                } else {
                    // It's empty for now, so let's say first that it's a string
                    row[index[j]] = detailed_datas[i][j];
                }
            }
        }
        formated_datas.push(row);
    }
    console.log(formated_datas); // @TODO : remove this
    return formated_datas;
}