Target Value - Use the series-level attribute to define a target value for the chart. When target values are set on a data item, the value attribute defines the filled area within the slice and the target value attribute represents the value of the whole slice.

Link Target - Use the series-level attribute to define a link on the selection of a segment of the chart. In this example, the link is using JavaScript to set a page item to the value of the currently selected data point. The link target is referencing columns in the SQL query using &COLUMN_NAME. syntax.

For more information on the Funnel chart, refer to the Oracle JET Cookbook Funnel Chart: Target Values and Funnel Chart: Selection examples.

JavaScript Code - Use the chart-level attribute to define custom JavaScript, to set the attribute selectionMode for the chart. By default, a user can declaratively define links based upon the selection of a data point. If you wish to apply alternative selection handling on your chart, such as using multi-selection, this must be defined via JavaScript. You can also define an 'optionChange' listener on the chart, based upon the click action. In that 'optionChange' listener, define the action you want to occur when a data point selection is detected. In this example, a page item with the label 'Series' will be updated to display the data point name(s). The code snippet used is as follows:

function( options ) {   
    // Set Selection Mode to Multiple chart elements
    options.selectionMode = "multiple";
        
    // Initialize the component with the optionChange callback specified
    options.optionChange = function( event, ui ) {
        if ( ui[ "option" ] === "selection" ) {
            var items = " ";
            if( ui['value'] ){
                for( var i = 0; i < ui['value'].length; i++ ){
                    if(ui['value'][i]) {
                        items += "    " + ui['value'][i]['series'] + "
";
                    } 
                }
                $s( "P22_SERIES_2", items );
            }  
        }
    };
    return options;
}

For more information on the Funnel chart, refer to the Oracle JET Cookbook Funnel Chart: Selection example.