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PromptBeginner5 minmarkdownQuality: 22
- Data Structures: Map vs Object for lookups
Set vs Array for uniqueness
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Set vs Array for uniqueness
implement caching
data volume
unnecessary joins
missing indexes
eliminating N+1 problems
database queries
dicts)
race conditions
pagination
serialized async work
excessive reads/writes
missing indexes
data volumes
profiling data
data structure choices
contention points
read/write ratios
HyperLogLog
random values) in keys that should be shared
minutes for session data
data growth
70% for warm data)
write-behind