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 (Linux; Android 6.0; LG-H815 Build/MRA58K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Mobile Safari/537.36
Test name Executions per second
Cache length 2465.2 Ops/sec
Do not cache 1263.2 Ops/sec
Script Preparation code:
Tests:
  • Cache length

  • Do not cache

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