Caching length property vs getting it each time in the loop

save length of the array in the variable vs get it the loop
5 years ago
User agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Test name Executions per second
Cache length 288703.4 Ops/sec
Do not cache 179650.0 Ops/sec
Script Preparation code:
Tests:
  • Cache length

  • Do not cache

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