app/assets/javascripts/welcome.js.coffee
SHARED_PASSWORD = 'test'
logIn = (userEmail) ->
$form = $('form.new_user')
$form.find('#user_email').val(userEmail)
$form.find('#user_password').val(SHARED_PASSWORD)
$form.submit()
showLoading = ($button) ->
$button.text 'Logging in…'
initializePrefillLoginButtons = ->
$buttons = $('.prefill-login')
$buttons.each ->
$button = $(this)
$button.click ->
logIn($button.data('user-email'))
showLoading($button)
$ ->
initializePrefillLoginButtons()