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List passed by ref - help me explain this behaviour
...asses a reference to the local-variable myRef (as declared in TestMethod); now, if you reassign the parameter inside ChangeList you are also reassigning the variable inside TestMethod.
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impro...
What is a patch in git version control?
...TS)
See also Contributing to Rails with Git as another concrete example.
Nowadays, the GitHub pull request makes it really easy to apply patches on GitHub repos, which is useful when you aren't a direct contributor (ie you have no right to directly push to a repo).
Actually, fairly recently GitHub...
Xcode changes unmodified storyboard and XIB files
... because of merging issues. Total madness. They are so amazing, especially now that they have intelligent autolayout built in, you are really missing out if you are not using them.
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Force browser to clear cache
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SO is using GET arguments now.
– Saeb Amini
Nov 23 '11 at 16:36
61
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MySQL, better to insert NULL or empty string?
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I don't know what best practice would be here, but I would generally err in favor of the null unless you want null to mean something different from empty-string, and the user's input matches your empty-string definition.
Note that I'...
Why should hash functions use a prime number modulus?
...or likely cases, since collisions reduce the efficiency of the hashtable.
Now, suppose someone puts a whole bunch of values into a hashtable that have some relationship between the items, like all having the same first character. This is a fairly predictable usage pattern, I'd say, so we don't want...
What's the purpose of using braces (i.e. {}) for a single-line if or loop?
...think of is nested if's:
if (cond1)
if (cond2)
doSomething();
Now, assume you now want to doSomethingElse() when cond1 is not met (new feature). So:
if (cond1)
if (cond2)
doSomething();
else
doSomethingElse();
which is obviously wrong, since the else associates with the ...
Remove large .pack file created by git
... a load of files in to a branch and merged and then had to remove them and now I'm left with a large .pack file that I don't know how to get rid of.
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JUnit 4 Test Suites
...ice.class,
testMyBackend.class,
...
})
public class AllTests {}
Now you can run this in a couple different ways:
right-click and run in Eclipse as Junit test
create a runable Java Application; Main class='org.junit.runner.JUnitCore' and Args='my.package.tests.AllTests'
run from the comm...
Google Guice vs. PicoContainer for Dependency Injection
...scourage setter injection but other than that, your classes don't need to know about Pico. It's only the wiring that needs to know (true for all DI frameworks).
Guice - Guice now supports the standard JSR 330 annotations, so you do not need Guice specific annotations in your code anymore. Spring als...