$(document).ready(function() {
  let tableData = [];

 $('#referred_affiliates tbody tr td').each(function(index, element){
  tableData.push($(element).text());
 });

 console.log(tableData);
});

$(document).ready(function() {
    let tableData = [];

    $('#referred_affiliates tbody tr').each(function (index, tr) {
        let row = [];
        tr.('td').each(function (rowId, rowData) {
            row[rowId] = rowData
        });

        tableData.push(row)
    })

    console.log(tableData);
});