I has created a D3 Bar Chart project. Everything is working except the tooltip. I don’t know how the example page work but mine isn’t working. Every time the event is emitted, the error come out which say
cannot read property 0 of undefined. I add the event listener as the example page does but the error is still there.
Project Link: https://codepen.io/AndrewAung11/pen/yLMOPBw
I might be blind, but I don’t see an event listener in your code (Handling Events).
Did you try just using a title, like in the challenge Add a Tooltip to a D3 Element
.text((d) => d);
@lasjorg Ah… Sorry I deleted it.
I have added the title elements but the test said
I can mouse over an area and see a tooltip with a corresponding id=“tooltip” which displays more information about the area
Tooltip should be hidden when mouse is not on an area: expected false to be true
@lasjorg It is working now. Thank you.
This topic was automatically closed 182 days after the last reply. New replies are no longer allowed.