I don’t understand what this error means:
- My tooltip should have a “data-education” property that corresponds to the “data-education” of the active area.
AssertionError: Could not find property “data-education” in tooltip : expected null to not equal null
What is a ‘property’ in this context? How to add such a property to the tooltip?
Here is my code so far: https://codepen.io/zdflower/pen/vrwEEr
Please, help me!