How to Access Ruby Session Variable in Javascript

Question

I have created Ruby Session Variable I need to access this variable in Javascript

Lets take this scenario

session[:note] = 'Some Notes' this is done in Ruby on Rails

Now I want to access this is like

var session_val = js-code for access above session variable.

its not js.erb I know if it is js.erb we can access like

var sesion_val = "<%= session[:note] %>"

TIA

Answer 1

You can use HTML5 data method from where you can access the variable.

suppose, your JS function is calling from a button. thus, you can define that button as:

<button class="btn" data-session="<%= session[:note]%>" onclick="seesionCheck()">Hello</button>

now, in your JS function you can access the variable as:

$(".btn").data('session');