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Git fatal: Reference has invalid format: 'refs/heads/master
I am using Dropbox to sync a git repository, but now when I try and push I am getting an error:
8 Answers
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Unnecessary curly braces in C++?
When doing a code review for a colleague today I saw a peculiar thing. He had surrounded his new code with curly braces like this:
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Convert blob URL to normal URL
...t%3A8383/568233a1-8b13-48b3-84d5-cca045ae384f" How can I convert it to a normal address?
4 Answers
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Using a ListAdapter to fill a LinearLayout inside a ScrollView layout
... it turns out it should display a few items within this ScrollView . The normal way to do that would be to use the existing ListAdapter , connect it to a ListView and BOOM I'd have my list of items.
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How to use the 'og' (Open Graph) meta tag for Facebook share
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Use:
<!-- For Google -->
<meta name="description" content="" />
<meta name="keywords" content="" />
<meta name="author" content="" />
<meta name="copyright" content="" />
<meta name="application-name" cont...
When to use self over $this?
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Short Answer
Use $this to refer to the current
object. Use self to refer to the
current class. In other words, use
$this->member for non-static members,
use self::$member for static members.
Full Answer
Here i...
How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
..." side of a jump instruction. This can be a big win, if the prediction is correct it means that the jump instruction is basically free and will take zero cycles. On the other hand if the prediction is wrong, then it means the processor pipeline needs to be flushed and it can cost several cycles. So ...
Unit testing with Spring Security
... available as a bean in the container, so there is no way to easily inject or autowire it out of the box.
Before we started to use Spring Security, we would create a session-scoped bean in the container to store the Principal, inject this into an "AuthenticationService" (singleton) and then inject ...
Can you define aliases for imported modules in Python?
In Python, is it possible to define an alias for an imported module?
5 Answers
5
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How to assertThat something is null with Hamcrest?
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You can use IsNull.nullValue() method:
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.nullValue;
assertThat(attr.getValue(), is(nullValue()));
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