Oh, didn't realise an enumerable had the array methods available. You can't use the [ ] notation so I assumed it wouldnt work and didnt actually try it.
In your example, yeah i'd agree you'd have to use some sort of indexing scenario. Though, using index like the second example works? The 'index' is only available while iterating, at the time the event fires, wouldn't it be gone, closure or no closure? I spoke to Mathieu who has made a change to the datepicker to allow it to be initialized if it hasnt when you click it, which solves my 2) question, but still wondering why that would be a bad idea anyway. On 11/15/07, kangax <[EMAIL PROTECTED]> wrote: > > > Gareth, > > http://www.prototypejs.org/api/array/first > and > http://www.prototypejs.org/api/array/last > should do the trick. > > The problem arises when you need to access next element in a > collection. Consider this example: > > $$('input[type=text]').invoke('observe', 'keypress', function(e) { > if (Event.KEY_TAB == e.keyCode) { > // focus next element in collection > } > }) > > Inside a callback we could resort to this.next('input[type=text]'), > but this unfortunately will not work if input elements are not in a > linear order > One way to make it happen is by storing index of a current element in > a closure and focusing the element with index = index + 1 when the key > is pressed > > $$('input[type=text]').each(function(el, index) { > el.observe('keypress', function(e)) { > if (Event.KEY_TAB == e.keyCode) { > $$('input[type=text]')[index+1].focus() > } > } > }) > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Spinoffs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/rubyonrails-spinoffs?hl=en -~----------~----~----~----~------~----~------~--~---
