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Swift: Testing optionals for nil
I'm using Xcode 6 Beta 4. I have this weird situation where I cannot figure out how to appropriately test for optionals.
14...
How do I generate random number for each row in a TSQL Select?
..., the following code generates a random number between 0 and 13 inclusive with a uniform distribution:
ABS(CHECKSUM(NewId())) % 14
To change your range, just change the number at the end of the expression. Be extra careful if you need a range that includes both positive and negative numbers. If y...
Does IMDB provide an API? [closed]
I recently found a movie organizer application which fetches its data from the IMDB database .
19 Answers
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Difference between “@id/” and “@+id/” in Android
...refer to Android resources , which are already defined in Android system, with @android:id/.. while to access resources that you have defined/created in your project, you use @id/..
More Info
As per your clarifications in the chat, you said you have a problem like this :
If we use android:id="...
How to change progress bar's progress color in Android
...an horizontal progress bar in my Android application, and I want to change its progress color (which is Yellow by default). How can I do it using code (not XML)?
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How to convert a string to lower case in Bash?
..." | awk '{print tolower($0)}'
hi all
Non-POSIX
You may run into portability issues with the following examples:
Bash 4.0
$ echo "${a,,}"
hi all
sed
$ echo "$a" | sed -e 's/\(.*\)/\L\1/'
hi all
# this also works:
$ sed -e 's/\(.*\)/\L\1/' <<< "$a"
hi all
Perl
$ echo "$a" | perl -n...
Why do we check up to the square root of a prime number to determine if it is prime?
To test whether a number is prime or not, why do we have to test whether it is divisible only up to the square root of that number?
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Ways to save Backbone.js model data?
...rice':'0.25'}
So this brings us up to saving models and persisting them either to a server. There is a whole slew of details regarding "What is REST/RESTful?" And it is kind of difficult to explain all this in a short blurb here. Specifically with regard to REST and Backbone saving, the thing to w...
Why am I getting ibtool failed with exit code 255?
...milar happen to me recently using Xcode 4.6 and iOS 6.1.
All I did was switch to a different device version (5.1) on the simulator and it ran. Switched back to 6.1 and it fixed itself.
Xcode can be unhelpful at times.
sh...
Resource interpreted as stylesheet but transferred with MIME type text/html (seems not related with
...d responses consist of a bunch of headers and a (sometimes optional) body with some content in it.
If there is a body, then one of the headers is the Content-Type which describes what the body is (is it an HTML document? An image? The contents of a form submission? etc).
When you ask for your styl...