⚡ Bolt: optimize clock update performance in index.html#101
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- Cache Intl.DateTimeFormat instances to avoid expensive re-instantiation on every tick. - Cache DOM references in a closure for O(1) access. - Use textContent instead of innerHTML to avoid HTML parsing overhead. - Implement dirty-checking for the date portion to minimize redundant DOM updates. Performance impact: Reduces execution time of updateTime() from ~0.6ms to ~0.016ms per call (~37x faster). Co-authored-by: babelman97 <[email protected]>
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⚡ Bolt: Clock Performance Optimization
💡 What
Optimized the
updateTimefunction inindex.html, which runs every second to update the dashboard clock and world times.🎯 Why
The original implementation had several performance bottlenecks:
Intl.DateTimeFormatinstances every second viatoLocaleTimeStringandtoLocaleDateString.innerHTMLfor every update, triggering the browser's HTML parser and full layout recalculations for the entire time section.📊 Impact
innerHTMLwith targetedtextContentupdates, significantly reducing the layout/reflow cost of each tick.🔬 Measurement
Verified using a Playwright-based benchmark script that executes
updateTime()in a loop and measuresperformance.now(). Visual correctness confirmed via automated screenshots.PR created automatically by Jules for task 13159980085714165407 started by @babelman97