A typical implementation of a Backbone View's render method

MyView.js

var MyView = Backbone.View.extend({
  
  initialize: function() {},
  
  render: function() {
    
    // Put content into the el
    this.$el.append( /* some HTML */ ); 
    
    // Put the el onto the page
    $('#content').append(this.el);
    
  }
  
});

new MyView().render();