How do I make .txt files -> arrays -> Vector3 ? (js)

Hi, I'm trying to make numbers in a text file into arrays, and then make them into 3D vectors.

the text file goes like this

It has 3 numbers in a line, and that 3 numbers represent one vector.

Here's my code.

var dataFile : TextAsset;

function Start() { var i=0; var j=0; var k=0; var l=0; var arr_1 = new Array(); var arr_2 = new Array(); var arr_3 = new Array(); var txtArr = new Array();

 while (!dataFile.text[k])
 {
     while (!dataFile.text[k]=="\n")
     {
         while (!dataFile.text[k]==" ")
         {
             if (j==0)
                 arr_1[l]=dataFile.text[k];
             else if (j==1)
                 arr_2[l]=dataFile.text[k];
             else if (j==2)
                 arr_3[l]=dataFile.text[k];
             k++;
         }
         if (j==2)
             j=0;
         else
             j++;
         l=0;
         k++;
     }
     txtArr[i]=(arr_1,arr_2,arr_3);
     k++;

 }

 Debug.Log(dataFile);

 var Vec_1 : Vector3; 
 var Vec_2 : Vector3;

 while(!txtArr[i]){
     Vec_1 = Vector3(txtArr[i][0],txtArr[i][1],txtArr[i][2]);
     Vec_2 = Vector3(txtArr[i+1][0],txtArr[i+1][1],txtArr[i+1][2]);

     CreateCylinderBetweenPoints(Vec_1, Vec_2, 0.1);
     }

}

the createcylinder~ thing is another function, so you don't have to consider that.

help me please