javascript
6 articles tagged javascript.
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JavaScript Objects, Hidden Classes, and Inline Caches
How JavaScript engines give objects shapes, speed repeated property access, and fall back when those shapes stop matching optimized code.
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Browser Microtasks and the Render Queue
How browsers drain promise callbacks between tasks and rendering, and why that ordering changes logs, DOM updates, timers, and responsiveness.
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Browser Microtasks and the Render Queue
How promise callbacks run between browser tasks, and how long microtask chains can delay rendering and user input.
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V8 Hidden Classes and Inline Caches
How V8 tracks JavaScript object shapes, specializes property access, and deoptimizes code when those assumptions stop being true.
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Browser Microtasks and the Render Queue
How promise callbacks enter the browser’s microtask queue, run to completion, and affect rendering, input, and event-loop responsiveness.
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Browser Microtasks and the Render Queue
How promise callbacks and mutation observers run between browser tasks, and why long microtask chains can delay rendering and starve the event loop.