Ask HS: Are there any front-end web frameworks that use only JavaScript?

For example, if you wanted to have a title centered on the page you might do something like...

var page = new Page();

var label = new Label(); label.x = page.width/2; label.y = page.height/2; label.text = "Hello, World!"; label.textColor = new Color(r: 1, g: 0, b: 0);

page.add(label);

etc.