Help with update function (mutable var)

Hello, newbie here.

I was visiting the d3.bisect function and I am a hard time trying to replicate the line chart here:

I don’t know why but the chart’s legend and markers are not updating, though the bars and the mutable lookup cell value are updating with mouse move.

At first, I thought it was due to different data formats, but apparently no. I am almost certain that the problem is somewhere inside the update function, but again, I couldn’t figure it out.

Anyone could give me a hint?

I have just figured it out: d3.bisect works only with sorted data!


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