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How to hide one item in an Android Spinner
I am looking for a way to hide one item in an Android spinner widget. This would allow you to simulate a spinner with no items selected, and ensures that the onItemSelected() callback is always called for every item selected (if the hidden item is the "current" one). Normally there is always one ite...
:first-child not working as expected
...1:first-child selector means
Select the first child of its parent
if and only if it's an h1 element.
The :first-child of the container here is the ul, and as such cannot satisfy h1:first-child.
There is CSS3's :first-of-type for your case:
.detail_container h1:first-of-type
{
color: bl...
How do I build a numpy array from a generator?
...ping this in mind, it is technically impossible to take a generator object and turn it into an array unless you either:
can predict how many elements it will yield when run:
my_array = numpy.empty(predict_length())
for i, el in enumerate(gimme()): my_array[i] = el
are willing to store its elemen...
Handling applicationDidBecomeActive - “How can a view controller respond to the app becoming Active?
...egister it as an observer for the UIApplicationDidBecomeActiveNotification and specify which method that you want to call when that notification gets sent to your application.
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(someMeth...
Ruby on Rails: Where to define global constants?
...on Rails webapp. I've got a bunch of different models, views, controllers, and so on.
12 Answers
...
Why use jQuery on() instead of click()
... example coming from an AJAX call), you might want to have the same click handler that was previously bound to the same element selector, you then "delegate" the click event using on() with selector argument
To demonstrate:
http://jsfiddle.net/AJRw3/
on() can also be synonymous with click() if yo...
How to upgrade R in ubuntu? [closed]
I have R 2.12.1 installed in my ubuntu, and I'd like upgrade to lastest version 2.15, how can achieve that ? Thanks
1 Answ...
What do {curly braces} around javascript variable name mean [duplicate]
...s available in ES6 (use esnext option) or Mozilla JS extensions (use moz) and this however after reading it I still don't understand why it is used
...
Ruby: How to turn a hash into HTTP parameters?
...onality was removed from the gem.
Julien, your self-answer is a good one, and I've shameless borrowed from it, but it doesn't properly escape reserved characters, and there are a few other edge cases where it breaks down.
require "addressable/uri"
uri = Addressable::URI.new
uri.query_values = {:a ...
In Intellij IDEA how do I replace text with a new line?
Say I wanted to replace all commas with commas and a new line using Intellij IDEA's replace function. What do I put in the search box? In vim I'd use &\r
...