Caching length property vs getting it each time in the loop

save length of the array in the variable vs get it the loop
8 years ago
User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/601.7.8 (KHTML, like Gecko) Version/9.1.3 Safari/601.7.8
Test name Executions per second
Cache length 9602.5 Ops/sec
Do not cache 4799.4 Ops/sec
Script Preparation code:
Tests:
  • Cache length

  • Do not cache

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