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“Items collection must be empty before using ItemsSource.”
...wise you can spend a lot of time looking at ItemSource's etc only to eventually find that its caused by a small typo.
– pjm
Nov 21 '16 at 12:31
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Handle Guzzle exception and get HTTP body
...ropriate exception type (ClientErrorResponseException for 4xx errors) and call its getResponse() method to get the response object, then call getBody() on that:
use Guzzle\Http\Exception\ClientErrorResponseException;
...
try {
$response = $request->send();
} catch (ClientErrorResponseExcep...
What is a loop invariant?
...rograms. We make a single statement that we focus on proving true, and we call it the loop invariant. This organizes our logic. While we can just as well argue informally about the correctness of some algorithm, using a loop invariant forces us to think very carefully and ensures our reasoning is ai...
How to compare variables to undefined, if I don’t know whether they exist? [duplicate]
...s a string, and doesn't generate an error if the variable doesn't exist at all.
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How big should a UIBarButtonItem image be?
...n "about 20x20" though. If you use an image of exactly 20x20px it will actually not map 1:1, and the button won't be square.
– Clafou
Jul 22 '12 at 22:24
1
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Understanding the ngRepeat 'track by' expression
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well, that's easy: just have a look at the code, it's all open source ;)
– nilsK
Mar 31 '14 at 13:22
4
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How do I execute a Git command without being in the repository?
...Try:
git --git-dir=/home/repo/.git log
It is important to give the path all the way up to the .git directory of your repository. Otherwise you will get only an error message that says something like:
fatal: Not a git repository
...
How to make git-diff and git log ignore new and deleted files?
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Is there a way to actually exclude just one type of data? Something like --diff-filter=!D
– Kamil Dziedzic
Aug 29 '14 at 8:44
2...
Maven project.build.directory
...org/apache/maven/model
There you'll find the pom-4.0.0.xml.
It contains all those "short cuts":
<project>
...
<build>
<directory>${project.basedir}/target</directory>
<outputDirectory>${project.build.directory}/classes</outputDirectory>...
Why is it not advisable to have the database and web server on the same machine?
...dicated network connection between the two, more maintenance, etc.), especially for a small application, where neither piece is using too much CPU or memory? Even with two servers, with one server compromised, an attacker could still do serious damage, either by deleting the database, or messing wi...