Run results for: typeof vs instanceof vs constructor

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser: Chrome 135

Operating system: Windows

Device Platform: Desktop

Date tested: 27 days ago

Script Preparation code:

function Ticket(id) {
  this._id = id;
}

var testTicket = new Ticket(1);
var count = 1000;

​x
 
function Ticket(id) {  this._id = id;}​var testTicket = new Ticket(1);var count = 1000;

Tests:

for (var i = 0; i < count; i += 1) {
  if (typeof testTicket === 'object') {
	continue;
  }
}

 
for (var i = 0; i < count; i += 1) {  if (typeof testTicket === 'object') {    continue;  }}

for (var i = 0; i < count; i += 1) {
  if (testTicket instanceof Ticket) {
	continue;
  }
}

 
for (var i = 0; i < count; i += 1) {  if (testTicket instanceof Ticket) {    continue;  }}

for (var i = 0; i < count; i += 1) {
  if (testTicket.constructor.name === 'Ticket') {
	continue;
  }
}

 
for (var i = 0; i < count; i += 1) {  if (testTicket.constructor.name === 'Ticket') {    continue;  }}