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Languages & runtimes · #rect
A technical decision guide comparing the HTML5 Canvas rect() method against manual lineTo pathing, focusing on code maintainability, winding rules, and path isolation.
Learn how to use the useMemo hook to prevent expensive calculations from running on every render, improving React application performance and referential stability.
Learn how to reuse android.graphics.Rect for efficient hit‑testing and layout work, with a code example and pitfalls to avoid.
Use Flutter’s Rect class to build precise, high‑performance hit‑testing logic in custom widgets. Learn how to override RenderBox.hitTest, cache Rects, and validate the approach with a draggable square example.
javascript
react
android
flutter