How to preview uploaded image instantly with paperclip in ruby on rails

Question

Basically, what I want to accomplish is to allow user to preview their uploaded image before they submit it.

In the controller, i have

def index
    @tem         


        

Answer 1

this worked in my case:

  $('.file-input').on 'change', (event) ->
    $('.image').attr('src', URL.createObjectURL(this.files[0]))