Run results for: function vs Class_

Test name	Executions per second
✓ function lexical	1,217,833 Ops/sec
function instance	969,488 Ops/sec
new Class singletone function	211,793 Ops/sec
new Function	201,185 Ops/sec
new Class	197,194 Ops/sec

function instance

function func(v) {
    const instance = { a: v }
    instance.b = function() {
        return instance.a
    }
    return instance
}
for (let i = 0; i < 100; i++) {
    const instance = func(i)
    instance.b()
    instance.b()
    instance.b()
    instance.b()
    instance.b()
}

new Class

class Class {
    constructor(v) {
        this.a = v
        this.b = function() {
            return this.a
        }
    }
}
for (let i = 0; i < 100; i++) {
    const instance = new Class(i)
    instance.b()
    instance.b()
    instance.b()
    instance.b()
    instance.b()
}

new Function

function Func(v) {
    this.a = v
    this.b = function() {
        return this.a
    }
}

for (let i = 0; i < 100; i++) {
    const instance = new Func(i)
    instance.b()
    instance.b()
    instance.b()
    instance.b()
    instance.b()
}

new Class singletone function

function func() {
	return this.a
}
class Class {
    constructor(v) {
        this.a = v
        this.b = func
    }
}
for (let i = 0; i < 100; i++) {
    const instance = new Class(i)
    instance.b()
    instance.b()
    instance.b()
    instance.b()
    instance.b()
}

function lexical

function func(v) {
    let a = v
    function b() {
        return a
    }
    return { b }
}
for (let i = 0; i < 100; i++) {
    const instance = func(i)
    instance.b()
    instance.b()
    instance.b()
    instance.b()
    instance.b()
}