How can I access the source data for current row in renderer? row param returns the visualRow not the real row number (which is different if grid is filtered or sorted)
demo:
https://jsfiddle.net/kxvdo430/
column Units is concatenated from currencyCode and USD. If you filter the grid it uses data from different row
renderer: (instance, td, row, col, prop, value, cellProperties) => {
td.innerHTML = instance.getSourceDataAtRow(row).currencyCode + '/USD ' + value;
return td;
}