Comments (1)
@maiasmith Please use StackOverflow for how-to questions. For one, the community to answer questions should be larger, and for another, it is easier for others in the same position to find answered questions.
In short, however:
(1) If you want to access the selected element in a D3 callback, you must use a proper function as the callback. Arrow functions are not permissible to achieve the context binding D3 performs under the hood.
(2) Make sure, you use the TypeScript generic parameters supported on many methods of the D3 TypeScript definitions, e.g. selectAll<...>(...)
to control the type of the selected element(s).
For more info on the generics and the this
context have a look at the JSDoc comments for the overloads in the TypeScript definitions e.g. for d3-selection in your case.
You can also have a look at my response to a somewhat related question for d3-drag on SO. See here
from d3-ng2-service.
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