Create Pdf and Upload Sharepoint Online

 function uploadStatus() {
   $("#invoiceModal").modal("hide");
   var doc = new jsPDF();

    //From Javascript
   var finalY = doc.lastAutoTable.finalY || 10;
   doc.text("Millestone Payment Invoice", 14, finalY + 15);
   doc.autoTable({
     startY: finalY + 20,
     head: [["Millestone", "Amount", "Date uploaded", "Uploaded by", "Status"]],
     body: [
       [`${tskName}`, `${tskCost}`, `${dateNow}`, `${user}`, `${tskStatus}`],
     ],
   });
   let blob = doc.output("blob");

   var arrayBuffer;
   var fileReader = new FileReader();

   //tskName = tskName.replace(/%/g, "");
   fileReader.onload = function () {
     arrayBuffer = this.result;
     $.ajax({
       url:
         _spPageContextInfo.webAbsoluteUrl +
         `/_api/web/getfolderbyserverrelativeurl('Invoices')/Files/add(overwrite=true, url='${tskName}.pdf')`,
       type: "POST",
       data: arrayBuffer,
       processData: false,
       headers: {
         Accept: "application/json; odata=verbose",
         "content-type": "application/json; odata=verbose",
         "X-RequestDigest": $("#__REQUESTDIGEST").val(),
         "content-length": arrayBuffer.byteLength,
       },
       success: function (data, textStatus, jqXHR) {
         console.log(
           "successHandler " + "textstatus:" + textStatus + "data: " + data
         );
       },
       error: function (xhr, ajaxOptions, thrownError) {
         console.log(
           "Request failed: " +
             xhr.status +
             "\n" +
             thrownError +
             "\n" +
             xhr.responseText
         );
       },
     });
   };
   fileReader.readAsArrayBuffer(blob);
 }