(I'm just) thinking out loud

Few things that might be helpful when working with client side validations. I am using client side validations in rails using gem Client side validations To validate forms dynamically added to the page, we need to use the validate function manually for that form. For example: If you dynamically render the following rails template into you view: <%= form_for @model, :validate => true, :id => 'my_dynamic_form' do |f| %> <%= f.text_field :some_attribute %> <% end %> $("form#my_dynamic_form").validate(); Reset Validations $("form#my_dynamic_form").resetClientSideValidations();

Here's is an array with 5 elements 2.1.2 :001 > arr = ["a", "b", "c", "d", "e"] => ["a", "b", "c", "d", "e"] Lets look at few different cases Insert a new element at starting position Using unshift 2.1.2 :002 > arr.unshift("f") => ["f", "a", "b", "c", "d", "e"] Using insert 2.1.2 :005 > arr.insert(0, "f") => ["f", "a", "b", "c", "d", "e"] In the above example 0 is the position(index) Move existing element from one position to another The element in this case is "e" Using uniq to show only unique elements 2.1.2 :009 > arr.insert(0, "e").uniq => ["e", "a", "b", "c", "d"] With uniq we are only showing unique records but the element is listed