I’m trying to upload content through csv file for that using the below given code

async uploadCSV(ev){
      const reader = new FileReader();
      const file = ev.target.files[0];
      var file_name = file.name.split(".");
      var file_ext = file_name[file_name.length - 1].toLowerCase();
  
      if (file_ext !== "csv") {
        return this.toasterServ.error("Please upload only csv file");
      } else {
        var output;
        reader.onload = () => {
          var csvToText = reader.result;
          output = this.csvToJSON(csvToText);
          console.log(output);
        };
        reader.readAsText(file);
        await new Promise((f) => setTimeout(f, 2000));
        this.submit();
      }
    }



  dataSource = [];
    csvToJSON(csv) {
      var lines = csv.split("n");
      var result = [];
      var headers;
      var fileType;
      headers = lines[0].split(",");
      headers = headers.map((s) => s.replace(/n|t|r/gm, ""), headers);
      for (var i = 1; i < lines.length; i++) {
        console.log("lines ---", lines);
        let obj = {};
        if (lines[i] == undefined || lines[i].trim() == "") {
          continue;
        }
        var words = lines[i].split(",");
        var criteria = { };
        for (var j = 0; j < words.length; j++) {
          let name;
          let userEmail;
          let userPhone='-';
          let fname = headers.indexOf("First Name");
          let lname = headers.indexOf("Last Name");
          let emailIndex= headers.indexOf("Email");
          let contactIndex= headers.indexOf("Phone");
          let notes= headers.indexOf("Notes");
          fname=fname != -1 ? words[fname].replace(/n|t|r/gm, "") : "";
          lname=lname != -1 ? words[lname].replace(/n|t|r/gm, "") : "";
          userEmail=emailIndex != -1 ? words[emailIndex].replace(/n|t|r/gm, "") : "";
          /* End */
          let header=headers[j];
          if(header!='First Name' && header!='Last Name' && header!='Email' && header!='Phone')
          {
            criteria[header] = words[j];
          }

          obj = {
            Name: name,
            Email:userEmail,
           
          };
        }
        result.push(obj);
      }
      this.dataSource = result;
      console.log("datadource ", this.dataSource);
    }

here issue i’m facing is if comma is there in any column then a new row is created from that point whole data gets disturbed. I want if comma is there in between the data column then also it should upload the data.If comma is not there then it is working

Any solution Thanks