src/charts/stacked-area.js
/**
         * MouseMove handler, calculates the nearest dataPoint to the cursor
         * and updates metadata related to it
         * @private
         */
MouseMove handler, calculates the nearest dataPoint to the cursor
and updates metadata related to it
@private
MouseMove handler calculates the nearest dataPoint to the cursor and updates metadata related to it @private
function handleMouseMove(){
            let dataPoint = getNearestDataPoint(getMouseXPosition(this) - margin.left),
                dataPointXPosition;
            if(dataPoint) {
                dataPointXPosition = xScale(new Date( dataPoint.key ));
                moveVerticalMarker(dataPointXPosition);
                highlightDataPoints(dataPoint);
                dispatcher.call('customMouseMove', this, dataPoint, categoryColorMap, dataPointXPosition);
            }
        }
function handleMouseMove ( ) { let dataPoint = getNearestDataPoint ( getMouseXPosition ( this ) - margin . left ) , dataPointXPosition ; if ( dataPoint ) { dataPointXPosition = xScale ( new Date ( dataPoint . key ) ) ; moveVerticalMarker ( dataPointXPosition ) ; highlightDataPoints ( dataPoint ) ; dispatcher . call ( 'customMouseMove' , this , dataPoint , categoryColorMap , dataPointXPosition ) ; } }
MouseMove handler, calculates the nearest dataPoint to the cursor
 and updates metadata related to it
 @private
MouseMove handler calculates the nearest dataPoint to the cursor and updates metadata related to it @private
// Move verticalMarker to that datapoint // Add data points highlighting // Emit event with xPosition for tooltip or similar feature