score:37

Accepted answer

To hide the title of tooltip, you need to return an empty function on tooltips title­'s callback, like so ...

options: {
   tooltips: {
      callbacks: {
         title: function() {}
      }
   },
   ...
}

score:2

To hide the tooltip title/label, it should be added in the options object for that chart as follows:

options: {
   plugins: {
      tooltip: {
         callbacks: {
            title : () => null // or function () { return null; }
         }
      }
   }
}

Do refer to the documentation to understand better that it should be handled with a custom callback function, and it is not a config that can be set in options directly. https://www.chartjs.org/docs/latest/configuration/tooltip.html#tooltip-callbacks

I've mentioned the same in this other thread : https://stackoverflow.com/a/68033933/8578337


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