Run results for: Prototypal property access vs passing cached value

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36

Browser: Chrome 80

Operating system: Mac OS X 10.15.1

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Property access	61.5 Ops/sec
Cached value	62.4 Ops/sec

Script Preparation code:

var Foo = function() {};
Foo.prototype._property = 'foo';
Foo.prototype.propertyAccess = function(param) {
  var property = this._property;
  this.noCache(param);
}
Foo.prototype.noCache = function(param) {
  console.log(this._property + '' + param);
}

var Bar = function() {};
Bar.prototype._property = 'bar';
Bar.prototype.propertyAccess = function(param) {
  var property = this._property;
  this.cache(property, param);
}
Bar.prototype.cache = function(property, param) {
  console.log(property + ' ' + param);
}

Tests:

Property access
var foo = new Foo(), i = 1000; while(i--) { foo.propertyAccess(i); }
Cached value
var bar = new Bar(), i = 1000; while(i--) { bar.propertyAccess(i); }

Run results for: Prototypal property access vs passing cached value

Property access

Cached value