sadnews.js

// worst names ever but it shows that instantionation with the new keyword is many orders of magnitude faster than 
// using object.create or object.setPrototypeOf or Object.defineProperties :(
// WHYYYYYY 

class cls {
  constructor(){
    this.x = 'x'
    this.y = 'y'
    this.z = 'z'
  }
}
cls.prototype.a = 'a'

makeClassObject = () => {
  return new cls()
}


function obj(){
  this.x = 'x'
  this.y = 'x'
  this.z = 'x'
}
obj.prototype = { a: 'a' }
makeDumbObject = () => {
  return new obj()
}

makeObjectsMutate = () => {
    let result = Object.create({a: 'a'})
    result.x = 'x'
    result.y = 'y'
    result.z = 'z'
    return result
}
makeObjectsSetProto = () => {
  result = {
    x: 'x', 
    y: 'y', 
    x: 'x', 
  }
  Object.setPrototypeOf(result, {a: 'a'})
  return result
}
makeObjectsDefine = () => {
    return Object.create({a: 'a'}, {
          x: {
                  value: 'x',
                  writable: true, 
                    },
          y: {
                  value: 'x',
                  writable: true, 
                    },
          z: {
                  value: 'x',
                  writable: true, 
                    },
          })
}
big = Math.pow(2, 20)
for(x=0; x< 5; x++){
      console.time('cool')
      for(i=0; i<big; i++){
                makeObjectsSetProto()
            }
      console.timeEnd('cool')
}
for(x=0; x< 5; x++){
      console.time('cool')
      for(i=0; i<big; i++){
                makeObjectsMutate()
            }
      console.timeEnd('cool')
}

for(x=0; x< 5; x++){
      console.time('cool')
      for(i=0; i<big; i++){
                makeObjectsDefine()
            }
      console.timeEnd('cool')
}

for(x=0; x< 5; x++){
      console.time('cool')
      for(i=0; i<big; i++){
                makeDumbObject()
            }
      console.timeEnd('cool')
}

for(x=0; x< 5; x++){
      console.time('cool')
      for(i=0; i<big; i++){
                makeClassObject()
            }
      console.timeEnd('cool')
}