Run results for: Ember.isNone vs hasownproperty

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.122 Safari/537.36

Browser: Chrome 80

Operating system: Mac OS X 10.14.6

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
isNone	3096554.5 Ops/sec
hasOwnProperty	11219000.0 Ops/sec

Script Preparation code:

var a = {'a': 1, 'b': 2};
for(var i = 4; i < 1000000; i++){
    a[i] = i;
}
function isNone(obj) {
  return obj === null || obj === undefined;
}

Tests:

isNone
isNone(a['c']);
hasOwnProperty
a.hasOwnProperty('c')

Run results for: Ember.isNone vs hasownproperty

isNone

hasOwnProperty