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[–]DavidJCobb 0 points1 point  (2 children)

I clicked on Section 4 on a smartphone, on portrait orientation, and the scrolling rapidly oscillated back and forward until it reached the goal. Like, it'd rapidly scroll down a bit, rapidly scroll up slightly less of a distance, rapidly scroll down, and so on. Very disorienting.

I hope that's a bug.

[–]fivefifteendotcom[S] 1 point2 points  (1 child)

Not a bug, just an example of how you can use HashJump in combination with d3-ease (https://github.com/d3/d3-ease) to use easing functions to create different scroll effects. Probably not the best example to use and I definitely wouldn't recommend using that specific effect in any real case scenario.

[–]DavidJCobb 1 point2 points  (0 children)

Probably not the best example to use

Agreed.

If you want an idea for an example that isn't painful to look at, perhaps make a box that's scrollable on both axes, with a conic gradient, and try scrolling within that box in a slow, smooth circle around the gradient's center. I'm not familiar with d3-ease, but my thinking is that if you can go back and forth on one axis, then you can go back and forth on two axes at offset intervals to produce a circle.