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⚡ Bolt: avoid intermediate tuple array allocation on Map entries - #1292
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Closing as a duplicate: the same Map.entries() to Array.from optimisation landed via #1293. |



💡 What: Replaced instances of the
[...map.entries()].map(([key, val]) => ...)anti-pattern withArray.from(map, ([key, val]) => ...).🎯 Why: Spreading Map entries into an array before calling
.map()allocates a massive temporary intermediate array containing thousands of two-element tuple arrays. These arrays are instantly discarded after the.map()resolves, creating unnecessary garbage collection pressure and potentially causing main-thread stutter during React render cycles.📊 Impact: Directly eliminates
O(N)tuple array allocations on high-frequency Map-to-Array transforms, significantly reducing memory spikes and GC overhead (especially for large icon dictionaries).🔬 Measurement: Run a heap snapshot locally; verify that
generate-api.tsandhome-hero.tsxno longer allocate large temporaryArrayobjects containing arrays of length 2 during map traversal. Tested and passing locally.PR created automatically by Jules for task 13620030307481467174 started by @thegdsks