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Chainable Rectangle Manipulation API

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Implement a chainable JavaScript class for selecting rectangles in a supplied 3-by-3 HTML grid, changing their color, delaying subsequent actions, and shifting them while preserving method-chain execu...

SWE
javascript
dom
async
frontend
oop-design
api-design
Frequency
Single report
Last asked
2026-08-03
Stage
phone-screen

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