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String concatenation vs. string substitution in Python
...ython, the where and when of using string concatenation versus string substitution eludes me. As the string concatenation has seen large boosts in performance, is this (becoming more) a stylistic decision rather than a practical one?
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Adjust UILabel height depending on the text
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sizeWithFont constrainedToSize:lineBreakMode: is the method to use. An example of how to use it is below:
//Calculate the expected size based on the font and linebreak mode of your label
// FLT_MAX here simply means no constraint...
How to fix a locale setting warning from Perl?
...produce your problem:
% uname -a
OSF1 hunter2 V5.1 2650 alpha
% perl -e exit
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LC_ALL = (unset),
LANG = "en_US.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the...
Volatile boolean vs AtomicBoolean
...(i) { i = temp + 5 }
}
If a variable is volatile, every atomic access to it is synchronized, but it is not always obvious what actually qualifies as an atomic access. With an Atomic* object, it is guaranteed that every method is "atomic".
Thus, if you use an AtomicInteger and getAndAdd(int delta...
How can I find an element by CSS class with XPath?
In my webpage, there's a div with a class named Test .
6 Answers
6
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What is a “bundle” in an Android application
What is a bundle in an Android application? When to use it?
12 Answers
12
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Example using Hyperlink in WPF
...application to open the link in a web browser you need to add a HyperLink with the RequestNavigate event set to a function that programmatically opens a web-browser with the address as a parameter.
<TextBlock>
<Hyperlink NavigateUri="http://www.google.com" RequestNavigate="Hy...
How to quickly check if folder is empty (.NET)?
I have to check, if directory on disk is empty. It means, that it does not contain any folders/files. I know, that there is a simple method. We get array of FileSystemInfo's and check if count of elements equals to zero. Something like that:
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How do I disable the “Press ENTER or type command to continue” prompt in Vim?
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I'm not sure how to do it globally though for one command:
:silent !<command>
Be sure to include a space after silent
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How to delete/create databases in Neo4j?
Is it possible to create/delete different databases in the graph database Neo4j like in MySQL? Or, at least, how to delete all nodes and relationships of an existing graph to get a clean setup for tests, e.g., using shell commands similar to rmrel or rm ?
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