How can I implement Javascript/ Jquery in rails 4.2.4 with ruby 2.2.3

I am building an app with ruby on rails. The version of rails and ruby are as listed above.

My objective is to implement JavaScript/ Jquery into my mindmap index views so that they can dynamically add information into my page without having to reload the entire page. So their will be a link to be clicked on which will will display the mindmap form, on submission of the form, the form should disappear and the new data should be appended into the specified div views. --So far I have been able to display the mindmap form once I click on the new link but the form doesn't disappear on the submission of the form. I have been able to allow the user to enter and submit the information but the information only shows after i do a full page reload.

I have tried a number but nothing seems to help.

Someone Please help. If you live in Chicago, I owe you a beer :).

Below are the controller, js and views file.

class MindmapsController < ApplicationController

  before_action :find_capsule, only: [:new, :index, :create, :show, :update, :destroy]
  before_action :find_mindmap, only: [:show, :edit, :index, :update, :destroy]

  before_action :authenticate_author!

  def index
    @mindmaps = Mindmap.all.order('created_at DESC')

  end

  def new
    @mindmap = Mindmap.new
  end

  def create
    @mindmap = Mindmap.new(mindmap_params)
    if @mindmap.save
      respond_to do |format|
        format.html {redirect_to mindmaps_path , notice:"You have successfully created a Mindmap"}
        format.js
      end
    else
      render 'new'
    end
  end

  def show
  end

  def edit
  end

  def update
    if @mindmap.update(mindmap_params)
      redirect_to @mindmap , notice:" You have successfully updated Your Mindmap"
    else
      render 'edit'
    end
  end

  def destroy
    @mindmap.destroy
    redirect_to mindmaps_path
  end

  def find_mindmap
    @mindmap = Mindmap.find_by(params[:id])
  end

  def find_capsule
    @capsule = current_author.capsules.find_by(params[:id])
  end

  def mindmap_params
    params.require(:mindmap).permit(:src, :src_purpose, :capsule_id, :profile_id)
  end
end

JavaScript files are located under the mind map views folder as FYI

new.js.erb

$("a#new_mindmap_link").hide().after("<%= j render('form')%>");

create.js.erb

$("form#new_mindmap").remove();
$("a#new_mindmap_link").show();
$("div#mindmap").append("<%= j render(@mindmaps) %>");

Mindmap index page

Mindmaps#index

<%= link_to "Create Mindmap", new_mindmap_path, id:"new_mindmap_link", remote: true %>
<% @mindmaps.each do |mindmap| %>
<div class="mindmap">    
    <div>Source: <%= mindmap.src %></div>
    <div class="meta">
  <%= link_to time_ago_in_words(mindmap.created_at) + " ago" , mindmap %>
        <span class="admin"><%= link_to "Edit", edit_mindmap_path(mindmap) %>
          <%= link_to "Delete", mindmap ,  method: :delete, data: { confirm: "Are you sure you want to delete this Mindmap" } %>
        </span>
    </div>
  </div>
<% end %>

Mindmap Form

<div class="col-md-4 mindmap-container">
  <%= simple_form_for @mindmap, remote: true do |f| %>
    <%= f.input :src, as: :url, class:'form-control', label: false, placeholder:"Add a URL" %>
    <%= f.input :src_purpose, as: :text, class: 'form-control', label: false,  placeholder: "Add a description to your URL"%>
    <%= f.input :capsule_id, label: false, collection: Capsule.all, default: 'Select a capsule', label_method: :title %>
    <%= f.input :profile_id, label: false, collection: Profile.all, default: 'Select a Profile ID',label_method: :profile_name %>
    <%= f.button :submit, class:'btn btn-primary' %>
    <% end %>
</div>