Run results for: for-in vs object.keys vs Ramda.mapObjIndexed

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36

Browser: Chrome 98

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

HTML Preparation code:

<script src="//cdn.jsdelivr.net/npm/ramda@latest/dist/ramda.min.js"></script>

Script Preparation code:

var obj = {
  'a': 1,
  'b': 1,
  'c': 1,
  'd': 1,
  'e': 1,
  'f': 1,
  'g': 1
};

Tests:

for-in
for (var i=10000; i > 0; i--) { for (var key in obj) { console.log(key); } }
Object.keys
for (var i=10000; i > 0; i--) { Object.keys(obj).forEach(key => console.log(key)); }
R.mapObjIndexed
for (var i=10000; i > 0; i--) { R.mapObjIndexed(function(value, key) { console.log(key) }, obj); }