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Ashish Kumar

Senior frontend engineer writing about React internals, browser performance, and how big tech builds things. renderlog.in

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Why Rapido Uses a Static PIN (Rapid OTP Trade-offs)
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Why Rapido Uses a Static PIN (Rapid OTP Trade-offs)

#ux #product #security #engineering
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3 min read

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Meta StyleX: Moving CSS-in-JS From Runtime to Build Time
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Meta StyleX: Moving CSS-in-JS From Runtime to Build Time

#stylex #css #frontend #javascript
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3 min read
DRM PiP Loophole: Why Picture-in-Picture Can Bypass DRM Black-Screen Protection
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DRM PiP Loophole: Why Picture-in-Picture Can Bypass DRM Black-Screen Protection

#drm #widevine #streaming #webplatform
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3 min read
Core Web Vitals and Lighthouse: What the Scores Mean
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Core Web Vitals and Lighthouse: What the Scores Mean

#performance #corewebvitals #lighthouse #lcp
BERJAYA 1
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9 min read
Why React Error Boundaries Are Still Class Components
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Why React Error Boundaries Are Still Class Components

#react #javascript #frontend #errors
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4 min read
React State Management Compared: Redux vs Zustand vs Jotai vs Valtio
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React State Management Compared: Redux vs Zustand vs Jotai vs Valtio

#react #statemanagement #javascript #frontend
BERJAYA 1
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4 min read
How Google Maps Predicts Traffic in Real Time: Live Data and ETA Explained
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How Google Maps Predicts Traffic in Real Time: Live Data and ETA Explained

#googlemaps #traffic #gps #dataengineering
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3 min read
The 16.6ms Frame Budget: Why Fast Loads Still Feel Slow
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The 16.6ms Frame Budget: Why Fast Loads Still Feel Slow

#performance #javascript #frontend #rendering
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3 min read
Why CSS Never Matches Figma: Browser vs Canvas Pipelines
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Why CSS Never Matches Figma: Browser vs Canvas Pipelines

#figma #css #designhandoff #frontend
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5 min read
DRM Explained: Why JioHotstar Goes Black When You Screen Share
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DRM Explained: Why JioHotstar Goes Black When You Screen Share

#drm #streaming #webplatform #security
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3 min read
Browser Rendering Pipeline: How JS and CSS Become Pixels
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Browser Rendering Pipeline: How JS and CSS Become Pixels

#performance #browser #rendering #javascript
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9 min read
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