Stop Using getBoundingClientRect() in Loops. It’s Killing Your Performance.
📰 Medium · JavaScript
Learn why using getBoundingClientRect() in loops can severely impact performance and how to optimize it
Action Steps
- Avoid using getBoundingClientRect() in loops to prevent layout thrashing
- Use caching or memoization to store the results of getBoundingClientRect()
- Consider using alternative methods such as getClientRects() or DOMRect
- Optimize your code by reducing the number of DOM reads and writes
- Test and profile your code to identify performance bottlenecks
Who Needs to Know This
Frontend developers and engineers can benefit from this knowledge to improve the performance of their web applications
Key Insight
💡 getBoundingClientRect() can cause layout thrashing and severely impact performance when used in loops
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🚨 Using getBoundingClientRect() in loops can kill your performance! 🚨 Learn how to optimize it and improve your web app's speed
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