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Linq: GroupBy, Sum and Count
...ance implications. Kirill's suggestion of using GroupBy generates the SQL one would expect.
– ShaneH
Apr 15 '15 at 13:19
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show 2 more comm...
How to update bower.json with installed packages?
In my project I've installed bower components without save option. Now, I would like update to bower.json ?
6 Answers
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How do I automatically scroll to the bottom of a multiline text box?
...e the textbox to automatically scroll to the bottom-most entry (the newest one) whenever a new line is added. How do I accomplish this?
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How should I validate an e-mail address?
...L_ADDRESS.matcher(target).matches();
}
}
Patterns viewable source
OR
One line solution from @AdamvandenHoven:
public final static boolean isValidEmail(CharSequence target) {
return !TextUtils.isEmpty(target) && android.util.Patterns.EMAIL_ADDRESS.matcher(target).matches();
}
...
Adding code to a javascript function programmatically
...rnal JS files which I do have access to, and what I'd like to do is change one of the functions contained in the original file without copying and pasting the whole thing into the second JS file.
So for example, the off limits JS might have a function like this:
...
How to enable file sharing for my app?
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Is there any reason why it couldn't have effect in one application? I enabled it but the the App won't show up on iTunes File Sharing
– rraallvv
Feb 5 '13 at 7:40
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Why can't I initialize non-const static member or static array in class?
...d in memory is removed, it gives such variables the exception to rule mentioned by Bjarne.
It is noteworthy to note here that even if static const integral values can have In-Class Initialization, taking address of such variables is not allowed. One can take the address of a static member if (a...
MAMP Pro 3.05 on Mavericks updated to Yosemite - Apache does not start
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One of the Apache modules used in MAMP (I forgot which one - this happened some time ago) used a copy that was shipped with the Mac OS. That module's location was changed in Yosemite leading to it not being found anymore by t...
What is the purpose of std::make_pair vs the constructor of std::pair?
...//www.cplusplus.com/reference/std/utility/make_pair/
pair <int,int> one;
pair <int,int> two;
one = make_pair (10,20);
two = make_pair (10.5,'A'); // ok: implicit conversion from pair<double,char>
Aside from the implicit conversion bonus of it, if you didn't use make_pair you'd ...
Guards vs. if-then-else vs. cases in Haskell
...ou're probably doing something right.
if..then..else is for when you have one binary condition, or one single decision you need to make. Nested if..then..else-expressions are very uncommon in Haskell, and guards should almost always be used instead.
let absOfN =
if n < 0 -- Single binary expr...