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Essential JS2

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How to format the tooltip text in ejChart?

Platform: jQuery |
Control: ejChart

By default, the x and y value of a point is displayed as the tooltip when you place the mouse over a Chart point. The labelFormat property of horizontal axis used by the series is used to format the x value displayed in tooltip and the labelFormat property of vertical axis used by the series is used to format the y value of text displayed in tooltip.


    commonSeriesOptions: {
        tooltip: {
            visible: true,
    primaryYAxis: {
        labelFormat: '${value} K'

The following screenshot displays the Chart with formatted y value of the point in tooltip text.

Formatted tooltip text

Figure 1: Chart with formatted tooltip text

JS Playground sample link: Tooltip text formatting

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