src/charts/donut.js
function buildContainerGroups() {
            let container = svg
              .append('g')
                .classed('container-group', true);

            container
              .append('g')
                .classed('chart-group', true);
            container
              .append('g')
                .classed('legend-group', true);
        }
function buildContainerGroups() {
            let container = svg
              .append('g')
                .classed('container-group', true);

            container
              .append('g')
                .classed('chart-group', true);
            container
              .append('g')
                .classed('legend-group', true);
        }
function buildContainerGroups ( ) { let container = svg . append ( 'g' ) . classed ( 'container-group' , true ) ; container . append ( 'g' ) . classed ( 'chart-group' , true ) ; container . append ( 'g' ) . classed ( 'legend-group' , true ) ; }
Builds containers for the chart, the legend and a wrapper for all of them
@private
Builds containers for the chart the legend and a wrapper for all of them