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 (iPad; CPU OS 9_3_5 like Mac OS X) AppleWebKit/601.1 (KHTML, like Gecko) CriOS/52.0.2743.84 Mobile/13G36 Safari/601.1.46
Test name Executions per second
Cache length 6438.7 Ops/sec
Do not cache 3237.4 Ops/sec
Script Preparation code:
Tests:
  • Cache length

  • Do not cache

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