DevExtreme React - Overview

A tooltip is a small pop-up rectangle displaying information about a series point that the user pauses on. The information is the point value by default, but it is possible to display anything in a tooltip.

DevExtreme HTML5 JavaScript PieChart Tooltip

All options configuring tooltips are collected in the tooltip object. For example, to enable the tooltips, assign true to the enabled option of this object.

Options declared in the tooltip object apply to all tooltips in the PieChart. If you want to customize a specific tooltip, assign a function to the customizeTooltip option. This function must return an object with options for the tooltip that you want to customize.

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