Javascript根据第一列中的值从csv文件中拆分行

我正在尝试根据第一列中的vlue将csv文件拆分为组。然后将这些行存储在一个数组中，以便在网页上显示。 我是javascript新手，无法理解它。 我有一个具有以下结构的csv文件：

0,-1.0,0.0,0.0,0.0
1,0.0,0.0,0.0,0.0
0,-1.0,0.0,0.0,0.0
1,-1.0,0.0,0.0,0.0
2,0.0,0.0,0.0,0.0
0,-1.0,0.0,0.0,0.0
1,-1.0,0.0,0.0,0.0
2,-1.0,0.0,0.0,0.0
3,0.0,0.0,0.0,0.0
0,-1.0,0.0,0.0,0.0
1,-1.0,0.0,0.0,0.0
2,-1.0,0.0,0.0,0.0
3,-1.0,0.0,0.0,0.0
4,0.0,0.0,0.0,0.0

我试图根据文件中第一列的值将数据行拆分为组。我试图从0分组到下一个0，然后将每个分割数据块存储在一个数组中，以便在网页上显示

我可以从for循环访问第一行，并设置一个条件来检查值是否为0，但在检测到下一个0之前，我很难添加下一行

请看下面我到目前为止所做的

// AJAX in the data file
    $.ajax({
        type: "GET",
        url: "static/Dataframe.csv",
        dataType: "text",
        cache: false,
        success: function(data) {
            var arr1 = data.split(/\r\n|\n|\r/);
            var array2 = [];
            for (let i = 0; i < arr1.length; i++) {

                    arr1[i].split(',');
                    array2.push(arr1[i]);
                    if(arr1[i][0]== 0){
                        array2.pop()
                    }
            }
            // for debugging
            // document.getElementById("dialog").innerHTML = arr1;
            console.log(array2);
        }
    });

我需要的是：

[
    [0, -1.0, 0.0, 0.0, 0.0, 1, 0.0, 0.0, 0.0, 0.0],
    [0, -1.0, 0.0, 0.0, 0.0, 1, -1.0, 0.0, 0.0, 0.0, 2, 0.0, 0.0, 0.0, 0.0],
    [0, -1.0, 0.0, 0.0, 0.0, 1, -1.0, 0.0, 0.0, 0.0, 2, -1.0, 0.0, 0.0, 0.0, 3, 0.0, 0.0, 0.0, 0.0],
    [0, -1.0, 0.0, 0.0, 0.0, 1, -1.0, 0.0, 0.0, 0.0, 2, -1.0, 0.0, 0.0, 0.0, 3, -1.0, 0.0, 0.0, 0.0, 4, 0.0, 0.0, 0.0, 0.0]
]

我是javaScript新手，很难弄明白这一点。 任何建议都将不胜感激。

请使用此

// AJAX in the data file
    $.ajax({
        type: "GET",
        url: "static/Dataframe.csv",
        dataType: "text",
        cache: false,
        success: function(data) {
            var arr1 = data.split(/\r\n|\n|\r/);
            var array2 = [];
            for (let i = 0; i < arr1.length; i++) {
                    tmp =  arr1[i].split(',');
                    array2.push(tmp);
                    if(arr1[i][0]== 0){
                        array2.pop()
                    }
            }
            // for debugging
            // document.getElementById("dialog").innerHTML = arr1;
            console.log(array2);
        }
    });

//数据文件中的AJAX
$.ajax({
键入：“获取”，
url:“static/Dataframe.csv”，
数据类型：“文本”，
cache:false，
成功：功能（数据）{
var arr1=data.split（/\r\n |\n |\r/）；
var array2=[]；
for（设i=0；i

您可以检查内部数组的第一个值，并将新数组添加到结果集中

“0.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\n1，-1.0,0.0,0.0,0.0\n2，-1.0,0.0,0.0,0.0\n3，-1.0,0.0,0.0,0.0,0.0\n4,0.0,0.0,0.0,0.0',， 结果=数据。拆分（/\r\n |\n |\r/）。减少（（r，s）=>{ var数组=s.split（'，'）.map（编号）； 如果（！数组[0]）{ r、 推送（[]）； } r[r.length-1].push（…数组）； 返回r； }, []); log（result.map（a=>a.join（“”））

---

。作为控制台包装器{max height:100%！important；top:0；}

有什么作用吗？请添加一个想要的结果。很抱歉我把它放进去了。我现在就去，谢谢你，尼娜。这正是我想要的：）

// AJAX in the data file
    $.ajax({
        type: "GET",
        url: "static/Dataframe.csv",
        dataType: "text",
        cache: false,
        success: function(data) {
            var arr1 = data.split(/\r\n|\n|\r/);
            var array2 = [];
            for (let i = 0; i < arr1.length; i++) {
                    tmp =  arr1[i].split(',');
                    array2.push(tmp);
                    if(arr1[i][0]== 0){
                        array2.pop()
                    }
            }
            // for debugging
            // document.getElementById("dialog").innerHTML = arr1;
            console.log(array2);
        }
    });

// AJAX in the data file
// Just removed the for loop with the length and see the modified code.
$.ajax({
        type: "GET",
        url: "static/Dataframe.csv",
        dataType: "text",
        cache: false,
        success: function(data) {
            var arr1 = data.split(/\r\n|\n|\r/);
            var array2 = [];
            for (var items of arr1) {
                    tmp =  items.split(',');
                    array2.push(tmp);
                    if(items[0]== 0){
                        array2.pop()
                    }
            }
            // for debugging
            // document.getElementById("dialog").innerHTML = arr1;
            console.log(array2);
        }
    });