Benchmark: asdfasdfiuasgubasb[iunab[vn

Script Preparation code:

class Foo {
  constructor() {
    this.isStatic = true;
  }
}

class Bar extends Foo {
  constructor() {
    super();
    this.isStatic = false;
  }
}

const bar = new Bar();

Tests:

instanceof
Boolean(bar instanceof Bar)
typeof
Boolean(bar.isStatic)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
instanceof
typeof

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser/OS: Chrome 135 on Mac OS X 10.15.7

View result in a separate tab

typeof

165.0M/s

instanceof

152.2M/s

View exact numbers

Test name	Executions per second
✓ typeof	165,024,640 Ops/sec
instanceof	152,234,752 Ops/sec

asdfasdfiuasgubasb[iunab[vn (version: 1)

Comparing performance of: `instanceof vs typeof`

Created: one year ago by: Guest

Go to the latest result

instanceof

typeof

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

asdfasdfiuasgubasb[iunab[vn (version: 1)

Comparing performance of: instanceof vs typeof

Created: one year ago by: Guest

Go to the latest result

instanceof

typeof

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `instanceof vs typeof`