Published
Edited
Sep 21, 2020
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md`# Day Twenty Five, 2020-09-18`
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- 9-2-7. Modify the code so that when you click the trigger, each circle will turn pink and its radius immediately increases from 2 to 7. Then circles transition (1 second) to new positions. In the end, circles **transition** (1 second) to original color and size.

- 9-2-8. "Instead of reselecting elements and calling a new transition on each one with \`.on("end", ...)\`, just tack a second transition onto the end of the chain." (p. 174). This chaining approach is recommended when "sequencing multiple transitions".
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Go to [Day 26](https://observablehq.com/@hongtaoh/day-twenty-six-2020-09-19).
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