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What is the best way to count “find” results?
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It's not more reliable if the -printf flag to find isn't supported on your platform. ;-)
– Randy Howard
Mar 27 '13 at 16:28
7
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Using @include vs @extend in Sass?
In Sass, I can't quite discern the difference between using @include with a mixin and using @extend with a placeholder class. Don't they amount to the same thing?
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jQuery get specific option tag text
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Thank you for this nickf. Here is this answer expanded if you want to get the value dynamically: var selectValue = document.getElementById('list').value; var selectOption = $("#list option[value=" + selectValue + "]").text(); ///good example nickf.
– Kevin...
What does “yield break;” do in C#?
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It specifies that an iterator has come to an end. You can think of yield break as a return statement which does not return a value.
For example, if you define a function as an iterator, the body of the function may look like this:
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Does the join order matter in SQL?
...ON (a.x, a.y) = (b.x, b.y) and the two queries would still be equivalent.
If however, any of these involved IS NULL or a function that is related to nulls like COALESCE(), for example if the condition was b.ab_id IS NULL, then the two queries would not be equivalent.
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onConfigurationChanged not getting called
...en the device switches between portrait and landscape
orientation. Thus, if you want to prevent runtime restarts due to
orientation change when developing for API level 13 or higher (as
declared by the minSdkVersion and targetSdkVersion attributes), you
must include the "screenSize" value in...
Flatten list of lists [duplicate]
...of_lists:
for val in sublist:
flattened.append(val)
The big difference is that the list comp evaluates MUCH faster than the unraveled loop and eliminates the append calls!
If you have multiple items in a sublist the list comp will even flatten that. ie
>>> list_of_lists = [...
Android Left to Right slide animation
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If you want the transition work for whole application you can create a rootacivity and inherit it in the activity you need. In Root Activity's onCreate call overridePendingTransition with desired direction. And onStart call o...
How to insert a text at the beginning of a file?
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The flaw of this solution is that it doesn't add the text if file is empty.
– DBedrenko
Apr 16 '16 at 20:45
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show 8 more c...
Java Generics Wildcarding With Multiple Classes
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Actually, you can do what you want. If you want to provide multiple interfaces or a class plus interfaces, you have to have your wildcard look something like this:
<T extends ClassA & InterfaceB>
See the Generics Tutorial at sun.com, specifically t...