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How to use Active Support core extensions
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Since using Rails should handle this automatically I'm going to assume you're trying to add Active Support to a non-Rails script.
Read "How to Load Core Extensions".
Active Support's methods got broken into smaller groups in Rails 3, so we don't end up loading a lot ...
What is the equivalent of “android:fontFamily=”sans-serif-light" in Java code?
...e, then the "default" font
will be chosen. The resulting typeface object can be queried
(getStyle()) to discover what its "real" style characteristics are.
Note that excessively using Typeface.create() is bad for your memory, as stated in this comment. The suggested Hashtable is a good solutio...
How to use RestSharp with async/await
...their names, for example the Task<T> overload for ExecuteAsyncGet is called ExecuteGetTaskAsync<T>. For each of the new Task<T> overloads there is one method that does not require a CancellationToken to be specified and there is one that does.
So now on to an actual example on ho...
What is a Lambda?
...sn't have (or, at least, need) its own name.
A closure is a function that can access variables that were in its lexical scope when it was declared, even after they have fallen out of scope. Anonymous functions do not necessarily have to be closures, but they are in most languages and become rather...
Cast an instance of a class to a @protocol in Objective-C
... [vc protocolMethod];
}
The UIViewController <MyProtocol> * type-cast translates to "vc is a UIViewController object that conforms to MyProtocol", whereas using id <MyProtocol> translates to "vc is an object of an unknown class that conforms to MyProtocol".
This way the compiler wil...
Should I add .vcxproj.filter files to source control?
...io 2010 Beta 2, I see that in the converted directory, my vcproj files became vcxproj files. There are also vcxproj.filter files alongside each project which appear to contain a description of the folder structure (\Source Files, \Header Files, etc.).
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How can I check if the current date/time is past a set date/time?
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Since PHP >= 5.2.2 you can use the DateTime class as such:
if (new DateTime() > new DateTime("2010-05-15 16:00:00")) {
# current time is greater than 2010-05-15 16:00:00
# in other words, 2010-05-15 16:00:00 has passed
}
The string pa...
what is the use of xsi:schemaLocation?
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The Java XML parser that spring uses will read the schemaLocation values and try to load them from the internet, in order to validate the XML file. Spring, in turn, intercepts those load requests and serves up versions from inside its own JAR files.
If you omit the schemaLocation, t...
How to make pipes work with Runtime.exec()?
... script instead of separate commands.
Pipe is a part of the shell, so you can also do something like this:
String[] cmd = {
"/bin/sh",
"-c",
"ls /etc | grep release"
};
Process p = Runtime.getRuntime().exec(cmd);
share
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Remove 'a' from legend when using aesthetics and geom_text
How can I can remove the letter 'a' from the legend generated by this code? If I remove the geom_text , then the 'a' letter will not show in the legend. I want to keep geom_text , though.
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