SOURCE

function inheritProto(child,parent){
    const newObj = Object.create(parent.prototype)
    newObj.constructor = child
    child.prototype = newObj
}

function Parent(name){
    this.name = name
    this.colors = ['yellow','blue','red']
}


Parent.prototype.getName = function(){
    return this.name
}


function Child(name,age){
    Parent.call(this,name)
    this.age = age
}

inheritProto(Child,Parent)

const a = new Child('1',12)

a.colors.push('green')

const b = new Child('2',13)

console.log(a.getName())

console.log(b)