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Can't find the 'libpq-fe.h header when trying to install pg gem
... For me after run brew install postgressql i run ARCHFLAGS="-arch x86_64" gem install pg and works fine.
– overallduka
Oct 31 '14 at 17:05
5
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Get event listeners attached to node using addEventListener
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How to make a phone call using intent in Android?
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This demo will helpful for you...
On call button click:
Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + "Your Phone_number"));
startActivity(intent);
Permission in Manifest:
<uses-permission android:nam...
Is it possible to start activity through adb shell? [duplicate]
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eg：
MyPackageName is com.example.demo
MyActivityName is com.example.test.MainActivity
adb shell am start -n com.example.demo/com.example.test.MainActivity
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Why does this code segfault on 64-bit architecture but work fine on 32-bit?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
...e an object.
Also IMO the code looks neater (see below).
Example:
A database object. To make sure the DB connection is used it must be opened and closed. By using RAII this can be done in the constructor/destructor.
C++ Like RAII
void someFunc()
{
DB db("DBDesciptionString");
// Use ...
How to plot two columns of a pandas data frame using points?
...es with millisecond precision. In trying to convert the objects to datetime64 type, I also discovered a nasty issue: < Pandas gives incorrect result when asking if Timestamp column values have attr astype >.
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CSS to set A4 paper size
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Expand a random range from 1–5 to 1–7
...will run in a constant amount of time, since 1/7 is an infinite decimal in base 5. One simple solution would be to use rejection sampling, e.g.:
int i;
do
{
i = 5 * (rand5() - 1) + rand5(); // i is now uniformly random between 1 and 25
} while(i > 21);
// i is now uniformly random between 1...
How to prevent favicon.ico requests?
...sers. I tested Safari, Chrome and Firefox:
<link rel="icon" href="data:;base64,=">
I left out the "shortcut" name from the "rel" attribute value since that's only for older IE and versions of IE < 8 doesn't like dataURIs either. Not tested on IE8.
UPDATE 2:
If you need your document to val...