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How do you express binary literals in Python?
... answered Aug 16 '08 at 12:35
Andreas ThomasAndreas Thomas
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How to do ToString for a possibly null object?
...efore, while it maybe appears elegant, the cast is almost always necessary and is not that succinct in practice.
As suggested elsewhere, I recommend maybe using an extension method to make this cleaner:
public static string ToStringNullSafe(this object value)
{
return (value ?? string.Empty).ToS...
How to count lines of Java code using IntelliJ IDEA?
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File - Settings - Plugins - Browse repositories... Find it on the list and double-click on it.
Open statistics window from:
View -> Tool Windows -> Statistic
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Checking if sys.argv[x] is defined
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In the end, the difference between try, except and testing len(sys.argv) isn't all that significant. They're both a bit hackish compared to argparse.
This occurs to me, though -- as a sort of low-budget argparse:
arg_names = ['command', 'x', 'y', 'operation', 'option']
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How do I sort a dictionary by value?
... a dictionary of values read from two fields in a database: a string field and a numeric field. The string field is unique, so that is the key of the dictionary.
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How to save/restore serializable object to/from file?
I have a list of objects and I need to save that somewhere in my computer. I have read some forums and I know that the object has to be Serializable . But it would be nice if I can get an example. For example if I have the following:
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SVN undo delete before commit
...vn revert deletedDirectory
Here's the documentation for the svn revert command.
EDIT
If deletedDirectory was deleted using rmdir and not svn rm, you'll need to do
svn update deletedDirectory
instead.
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Getting unique items from a list [duplicate]
...able<T> of distinct items:
var uniqueItems = yourList.Distinct();
And if you need the sequence of unique items returned as a List<T>, you can add a call to ToList:
var uniqueItemsList = yourList.Distinct().ToList();
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Read a variable in bash with a default value
... cases below, word is subject to tilde expansion, parameter expansion, command substitution, and arithmetic expansion.
So if you use webpath=${webpath:-~/httpdocs} you will get a result of /home/user/expanded/path/httpdocs not ~/httpdocs, etc.
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How to replace case-insensitive literal substrings in Java
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Not as elegant perhaps as other approaches but it's pretty solid and easy to follow, esp. for people newer to Java. One thing that gets me about the String class is this: It's been around for a very long time and while it supports a global replace with regexp and a global replace with Str...