Run results for: Hidden class test

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

different order

6.2M/s

same order

6.1M/s

View exact numbers

Test name	Executions per second
✓ different order	6,157,700 Ops/sec
same order	6,075,950 Ops/sec

Script Preparation code:

function addPoint1(x, y) {
    this.x = x;
    this.y = y;
    return this;
}

function addPoint2(x, y) {
    this.x = x;
    this.y = y;
    this.z = 0;
    return this;
}

Tests:

case1
var p1 = new addPoint1(1, 2); var p2 = new addPoint1(3, 4); var p3 = new addPoint1(5, 6); var p4 = new addPoint1(7, 8); var p5 = new addPoint1(17, 8); p1.z = 1; p2.z = 2; p3.z = 3; p4.z = 3; p5.z = 3; console.log(p1.z, p2.z, p3.z, p4.z, p5.z);
case2
var p1 = new addPoint1(1, 2); var p2 = new addPoint1(3, 4); var p3 = new addPoint1(5, 6); var p4 = new addPoint1(7, 8); var p5 = new addPoint1(17, 8); p1.z = 1; p2.a = 2; p3.b = 3; p4.c = 2; p5.d = 3; console.log(p1.z, p2.a, p3.b, p4.c, p5.d);
case3
var p1 = new addPoint2(1, 2); var p2 = new addPoint2(3, 4); var p3 = new addPoint2(5, 6); var p4 = new addPoint2(7, 8); var p5 = new addPoint2(17, 8); p1.z = 1; p2.z = 2; p3.z = 3; p4.z = 3; p5.z = 3; console.log(p1.z, p2.z, p3.z, p4.z, p5.z);

Run results for: Hidden class test

Hidden class test

case1

case2

case3