summary

Enables summary for column.
Also requires summary property for core object.

Example

new FancyGrid({
  ...,
  summary: true,
  columns: [{
    ...,
	summary: 'sum'
  },{

Example: summary row position

new FancyGrid({
  ...,
  summary: {
    position: 'bottom'
  },
  columns: [{
    ...,
	summary: 'sum'
  },{

Default

undefined