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How to empty (“truncate”) a file on linux that already exists and is protected in someway?
...denied, use sudo
$sudo truncate -s0 yourfile
Help/Manual: man truncate
tested on ubuntu Linux
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How to know when UITableView did scroll to bottom in iPhone
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The best way is to test a point at the bottom of the screen and use this method call when ever the user scrolls (scrollViewDidScroll):
- (NSIndexPath *)indexPathForRowAtPoint:(CGPoint)point
Test a point near the bottom of the screen, and the...
How to work around the lack of transactions in MongoDB?
...ish to follow because it seems that many things could go wrong and I can't test it in every aspect. I'm having a hard time refactoring my project to perform atomic operations. I don't know whether this comes from my limited viewpoint (I have only worked with SQL databases so far), or whether it actu...
How to use UIVisualEffectView to Blur Image?
...anslucent layer over my screen and not blurring - it was all because I was testing on an older device
– Keith
Jan 29 '16 at 14:30
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How to use GROUP BY to concatenate strings in MySQL?
...)
OR
mysql> SELECT student_name,
-> GROUP_CONCAT(DISTINCT test_score
-> ORDER BY test_score DESC SEPARATOR ' ')
-> FROM student
-> GROUP BY student_name;
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How can I get the root domain URI in ASP.NET?
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+1 And not the same as .Authority which -- in the tests I made on localhost -- leaves off the protocol (http://) part.
– GGleGrand
Jun 17 '16 at 13:43
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PHP prepend leading zero before single digit number, on-the-fly [duplicate]
PHP - Is there a quick, on-the-fly method to test for a single character string, then prepend a leading zero?
3 Answers
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Is it necessary to explicitly remove event handlers in C#
... Console.WriteLine("Subscriber.FooHandler()");
}
}
public class Test
{
static void Main()
{
Publisher publisher = new Publisher();
Subscriber subscriber = new Subscriber();
publisher.Foo += subscriber.FooHandler;
publisher.RaiseFoo();
p...
How to enable PHP short tags?
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We have a PHP coding test and occasionally receive submissions where the <?= short tag has been used. Unfortunately the assumption that this style is in use everywhere is a little naive and often comes from developers brought up on a diet of A...
RuntimeWarning: DateTimeField received a naive datetime
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You can also override settings, particularly useful in tests:
from django.test import override_settings
with override_settings(USE_TZ=False):
# Insert your code that causes the warning here
pass
This will prevent you from seeing the warning, at the same time anything ...