Alice's Adventures in Memory Management, or how JavaScript objects work
summary
Covers how V8 lays out values on stack and heap and how strings and objects become pointers, explains string interning and small-int SMIs, shows the Young Generation versus old generation lifecycle, and names the algorithms: scavenger (copying from/to) for ~1–8 MB young space and mark-and-sweep plus compaction for the old space. Demonstrates stop‑the‑world pauses, why fragmentation happens, when objects get promoted, and what causes visible UI jank.
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chapters (5)
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