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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)
pagination
data volumes
missing indexes
profiling data
data structure choices
HyperLogLog
minutes for session data
random values) in keys that should be shared
data growth
70% for warm data)
scalable for distributed systems
Memcached for simple key-value hot data
materialized views
cardinality
access patterns
eventual consistency patterns