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How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c
...arse --short for the shortest and yet unique SHA1.
See "git get short hash from regular hash"
git rev-parse --short=4 921103db8259eb9de72f42db8b939895f5651489
92110
As you can see in my example the SHA1 has a length of 5 even if I specified a length of 4.
For big repos, 7 isn't enough sinc...
Does using final for variables in Java improve garbage collection?
...ts are short-lived, the GC is more aggressive about freeing recent garbage from the young generation. If an object survives a collection cycle of the young generation, it gets moved into the old generation (sometimes referred to as the "tenured generation"), which is processed less frequently.
So, ...
Usage of protocols as array types and function parameters in swift
... typed array. Equatable conformance is required only for removing elements from array. My solution is an improved version of @almas solution because is can be used with any Swift type that conforms to Equatable protocol.
– bzz
Jul 25 '16 at 21:07
...
When and how should I use a ThreadLocal variable?
...eople can abuse it by using it as global variables.
I have copied the text from the mentioned book but code 3.10 is missing as it is not much important to understand where ThreadLocal should be use.
Thread-local variables are often used to prevent sharing in designs based on mutable Singletons or g...
How to add a new method to a php object on the fly?
... to the function as a parameter if you want to work with data or functions from the object instance! Also, you will not be able to access private or protected members of the class from these functions.
Good question and clever idea using the new anonymous functions!
Interestingly, this works: Rep...
How to directly initialize a HashMap (in a literal way)?
...e that you understand the above code (it creates a new class that inherits from HashMap). Therefore, you should read more here:
http://www.c2.com/cgi/wiki?DoubleBraceInitialization
, or simply use Guava:
Map<String, Integer> left = ImmutableMap.of("a", 1, "b", 2, "c", 3);
...
Maven does not find JUnit tests to run
...
UPDATE:
Like @scottyseus said in the comments, starting from Maven Surefire 2.22.0 the following is sufficient:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</...
Latest jQuery version on Google's CDN
...
UPDATE 7/3/2014: As of now, jquery-latest.js is no longer being updated.
From the jQuery blog:
We know that http://code.jquery.com/jquery-latest.js is abused
because of the CDN statistics
showing it’s the most popular file. That wouldn’t be the case if it
was only being used by deve...
How to use enums as flags in C++?
...
Also, is the cast from an arbitrary int back to the enum type valid, even if the int value does not correspond to any of the enum's identifiers?
– Ingo Schalk-Schupp
Dec 30 '13 at 20:47
...
How to capture the “virtual keyboard show/hide” event in Android?
...m/guide/topics/resources/runtime-changes.html#HandlingTheChange
Sample:
// from the link above
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Checks whether a hardware keyboard is available
if (newConfig.hardKeybo...