main.js:4 Uncaught TypeError: $container.setBackgroundColor is not a function

window.onload = function () {
    var $container = new View("container");

    $container.setBackgroundColor("#E9425B");

    document.body.append($container);
};

class View{
    constructor(id){
        this.id = id;
        this.view = document.createElement(this.id);
        return this.view;
    };

    get(){
        return document.getElementsByTagName(this.id);
    };

    setText(text){
        this.get().innerText = text;
    };

    setBackgroundColor(color){
        this.get().style.backgroundColor = color;
    };

    create(id){
        if(id != null){
            this.id = id;
        }
    };

    addChild(child){
        console.log(child);
        this.get().append(child);
    };
}