SpiderMonkey (FireFox) seems to be consistently favouring object property lookup (not surprising as that is a core mechanism in JavaScript that needs to be performant).
However somewhere around size > 1000 things get less predictable with V8 (Chromium). Perhaps putting getObjectSwitch on the hot code path may give it the full Turbofan treatment at some point in time.
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SpiderMonkey (FireFox) seems to be consistently favouring object property lookup (not surprising as that is a core mechanism in JavaScript that needs to be performant).
However somewhere around size > 1000 things get less predictable with V8 (Chromium). Perhaps putting
getObjectSwitchon the hot code path may give it the full Turbofan treatment at some point in time.