Uncaught TypeError: Object [object Object] has no method 'datepicker'

Question

I'm running rails 3 on localhost and was getting the error

Uncaught TypeError: Object [object Object] has no method 'datepicker'

after following railscasts http://railscasts.com/episodes/213-calendars, and putting both lines below into my application.html.erb file

<%= stylesheet_link_tag "http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/redmond/jquery-ui.css", "application" %>
<%= javascript_include_tag "http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js", "http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/jquery-ui.min.js", "application" %>

I actually solved this error by downloading jquery-ui.min.js file and putting it in my javascripts project folder, and replacing one of the lines, to the result below :

<%= stylesheet_link_tag "http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/redmond/jquery-ui.css", "application" %>
    <%= javascript_include_tag "application" %>

I also do not understand why i need to put my datepicker function inside my application.js :

$(function() {

  $('#start_date').datepicker();
  $('#end_date').datepicker();
})

and cannot put it on my users.js.coffee file with just the lines :

$('#start_date').datepicker();
$('#end_date').datepicker();

Anyone can explain why adding the js file locally solved this error, and why i cannot put my datepicker into my local coffee file, or if i can, can you please tell me how?

Thank you

+1 for explaining how to fix the "has no method 'datepicker'" error. — dimir
– dimir, Commented Oct 16, 2012 at 22:01

Micharch54 · Accepted Answer · 2012-07-27 16:48:46Z

1

I'm not a coffescript expert, but I think you have to do this.

jQuery ->
  ### your code here ###

answered Jul 27, 2012 at 16:48

Micharch54

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2 Comments

MrWater Over a year ago

This solves my problem of putting context-specific scripts in application.js. Let us see if anyone can explain the first part of the question in two days. If not, i shall accept your answer

Micharch54 Over a year ago

I would imagine that coffeescript is wondering where the variable datepicker came from. But again, I don't use coffeescript. I'd like to but it's not an option right now.

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