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How to determine if a type implements a specific generic interface type
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You have to go up through the inheritance tree and find all the interfaces for each class in the tree, and compare typeof(IBar<>) with the result of calling Type.GetGenericTypeDefinition if the interface is generic. It's all a bit painful, certainly.
See this answer and the...
get string value from HashMap depending on key name
...o see a String, such as "ABC" or "DEF" as that is what I put in there initially, but if I do a System.out.println() I get something like java.lang.string#F0454
Sorry, I'm not too familiar with maps as you can probably guess ;)
You're seeing the outcome of Object#toString(). But the java.lang....
Converting VS2012 Solution to VS2010
...t an app.config files that have references to .NET 4.5 in a similar way to allow them to run on a .NET 4.0 environment.
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How to center a checkbox in a table cell?
...lt;/table>
CSS
td {
text-align: center; /* center checkbox horizontally */
vertical-align: middle; /* center checkbox vertically */
}
table {
border: 1px solid;
width: 200px;
}
tr {
height: 80px;
}
I hope this helps.
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HTML5 textarea placeholder not appearing
...ayed since the input area contains content (a newline character is, technically, valid content).
Good:
<textarea></textarea>
Bad:
<textarea>
</textarea>
Update (2020)
This is not true anymore, according to the HTML5 parsing spec:
If the next token is a U+000A LINE FEED (LF)...
Why do I need Transaction in Hibernate for read-only operations?
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You might actually have reasons to mark transactions as read-only.
Transactions for reading might look indeed strange and often people don't mark methods for transactions in this case. But JDBC will create transaction anyway, it's just i...
How to run two jQuery animations simultaneously?
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I believe I found the solution in the jQuery documentation:
Animates all paragraph to a left style
of 50 and opacity of 1 (opaque,
visible), completing the animation
within 500 milliseconds. It also will
do it outside the queue, meaning it
will automatically start without
waiting f...
Can you delete multiple branches in one command with Git?
...syntax. But you can do it like this:
git branch -D 3.2 3.2.1 3.2.2
Basically, git branch will delete multiple branch for you with a single invocation. Unfortunately it doesn't do branch name completion. Although, in bash, you can do:
git branch -D `git branch | grep -E '^3\.2\..*'`
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How to search for a string in text files?
... if 'blabla' in f.read():
print("true")
Another trick: you can alleviate the possible memory problems by using mmap.mmap() to create a "string-like" object that uses the underlying file (instead of reading the whole file in memory):
import mmap
with open('example.txt') as f:
s = mm...
How to combine class and ID in CSS selector?
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There are differences between #header .callout and #header.callout in css.
Here is the "plain English" of #header .callout:
Select all elements with the class name callout that are descendants of the element with an ID of header.
And #header.callout means:
Select...