Depending on when you started learning JavaScript (and when you stopped keeping up) you might find a lot of this inside your code

for(var i=0;i<arr.length;i++) {
    html = "<li>" + arr[i] + "</li>"
}

or if you started with jQuery you will have copy and pasted something like this from stackoverflow

$.getJSON(url, function(data) {
    $.each(data, function(item) {
        $('#thing').append('<li>' + item + '</li>')
    }
}

or you could be doing something like this and use a client-side templete, Each model would get its own view

LayoutView = Backbone.View.extend({

        events: {},

        tagName: 'div',

        className: 'een-camera-holder',

        template: _.template($('#LayoutView-template').html()),

        initialize: function() {
            this.model.bind('change', this.render, this)
        },

        render: function() {
            this.$el.html(this.template(this.model.toJSON()))
            return this
        }

    })

I'm not sure what will come next in ES6 but I'm sure this will need to be updated in 6 months with let and yield