This sample explains the way of rendering tooltip template for taskbar and baseline by mapping template elements to the property of taskbar and baseline in tooltipSettings.
Tooltip can be enabled or disabled using tooltipSettings.showTooltip property.In this demo, the tooltip template is rendered for taskbar, timeline and baseline using the tooltipSettings.taskbar, tooltipSettings.timeline and tooltipSettings.baseline properties. The baseline feature enables the user to view the deviation between the planned dates and the actual dates of the tasks in a project. Baselines can be enabled in Gantt Chart by enabling the renderBaseline property along with mapping the data source values for baselineStartDate and baselineEndDate properties. More information on the Essential® JS2 Gantt Chart can be found in this documentation section.