Run results for: For In vs Object Values Count

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:98.0) Gecko/20100101 Firefox/98.0

Browser: Firefox 98

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

Script Preparation code:

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

Tests:

For IN
for (var i=10000; i > 0; i--) { let count = 0; for (var key in obj) { if (obj[key] === true) { count++; } } return count; }
Filter
for (var i=10000; i > 0; i--) { return Object.values(obj).filter(function(element) { element === true; }).length }
reduce
for (var i=10000; i > 0; i--) { return Object.values(obj).reduce((count, element) => { if (element) { count++ } return count }, []) }