How to combine custom formatters with predefined formatters in Tabulator JS?

Question

I'm using Tabulator JS and have 2 columns containing numeric data. First, I used the built-in money formatter with formatterParams parameters, and for the second one I wanted to apply exactly the same, with the same parameters, but also add, For example, the color of the cell. How to apply formatterParams in a custom format?

new Tabulator("#data-table", {
      data: data,
      layout: "fitColumns",
      columns: [{
          title: "Length",
          field: "length",
          formatter: zeroValueFormatter,
          formatterParams: {
            thousand: " ",
            precision: false
          }
        },
        {
          title: "New length",
          field: "newLength",
          formatter: "money",
          formatterParams: {
            thousand: " ",
            precision: false
          }
        ],
      });


function zeroValueFormatter(cell, formatterParams /* ? */) {
    if (cell.getValue() === 0) {
        cell.getElement().style.backgroundColor = "#add8e6";
    }    
    return cell.getValue();
}

Answer 1

One option is to use rowFormatter and apply the formatting to the specific columns you need. In your example, it's length columns. This way you can use the built-in money formatter at the column setting level for both columns, but apply other formatting at the row level. Here is an example:

const data = [
  { length: 0, newLength: 10000 },
  { length: 2000, newLength: 20000 },
  { length: 3000, newLength: 0 }
]

const table = new Tabulator("#data-table", {
  data: data,
  layout: "fitColumns",
  rowFormatter: zeroValueFormatter,
  columns: [{
      title: "Length",
      field: "length",
      formatter: "money",
      formatterParams: {
        thousand: " ",
        precision: false
      }
    },
    {
      title: "New length",
      field: "newLength",
      formatter: "money",
      formatterParams: {
        thousand: " ",
        precision: false
      }
    }
  ],
});

function zeroValueFormatter(row) {
  const rowData = row.getData()

  if (rowData['length'] === 0) {
    row.getCell('length').getElement().style.backgroundColor = "#add8e6";
  }

}

<link href="https://unpkg.com/tabulator-tables@5.5.1/dist/css/tabulator.min.css" rel="stylesheet" />
<script type="text/javascript" src="https://unpkg.com/tabulator-tables@5.5.1/dist/js/tabulator.min.js"></script>
<div id="data-table"></div>