.js

// View.js
class View{

    constructor(selector){
        this.element = document.querySelector(selector)
    }
    //deve ser reescrito
    template(model){
        throw new Error("abstract method must be override")
    }
  
    update(model){
        this.element.innerHTML = this.template(model)
    }
}

//MemberView.js
class MemberView extends View{
    
    constructor(selector){
        super(selector)
    }
    //uma view simples com uma acao do controller atrelada a um evento de click
    template(member){
        return `<h1> Ramires </h1>
            <a href="#logout" onClick="loginController.logOut(event)">
                logout 
            </a>   
        `
    }
}

//MemberController
class MemberController{
    constructor(selector){
        this.memberView = new MemberView(selector)
        this.memberView.update() //mostra a view ao criar um memberController
    }
}
//index.html
...

<div id="member"> </div> 

<script> 
  const memberController = new MemberController("#member")
</script>
....