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How to delete an item in a list if it exists?
...:
pass # or scream: thing not in some_list!
except AttributeError:
call_security("some_list not quacking like a list!")
Off course the second except clause in the example above is not only of questionable humor but totally unnecessary (the point was to illustrate duck-typing for people not...
I get exception when using Thread.sleep(x) or wait()
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As other users have said you should surround your call with a try{...} catch{...} block. But since Java 1.5 was released, there is TimeUnit class which do the same as Thread.sleep(millis) but is more convenient.
You can pick time unit for sleep operation.
try {
TimeUnit...
How to create and use resources in .NET
...? Well, lucky us, C# makes this exceedingly easy.
There is a static class called Properties.Resources that gives you access to all your resources, so my code ended up being as simple as:
paused = !paused;
if (paused)
notifyIcon.Icon = Properties.Resources.RedIcon;
else
notifyIcon.Icon = Pr...
Lists: Count vs Count() [duplicate]
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@BFree, How we can call this in VB.NET ?
– kbvishnu
Nov 15 '13 at 10:57
8
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Get the first key name of a javascript object [duplicate]
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There's no such thing as the "first" key in a hash (Javascript calls them objects). They are fundamentally unordered. Do you mean just choose any single key:
for (var k in ahash) {
break
}
// k is a key in ahash.
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How do you test private methods with NUnit?
...right way. But I then have no idea whether the private method was actually called, unless I trust the public method to never change. Private methods are intended to be private to production users of code, not the author.
– Quango
Jan 17 '13 at 12:10
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Get the (last part of) current directory name in C#
...I like this better than the chosen answer. (Ab)using GetFileName is semantically wrong since it's a directory you're trying to retrieve. Also, to make GetFileName deterministic means you have to account for the possibility of a trailing forward slash or backslash, and trim it off, which is ugly.
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What does “export” do in shell programming? [duplicate]
...p '^variable='
$ # No environment variable called variable
$ variable=Hello # Create local (non-exported) variable with value
$ env | grep '^variable='
$ # Still no environment variable called variable
$ export variable...
How to checkout a specific Subversion revision from the command line?
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If you already have it checked out locally then you can cd to where it is checked out, then use this syntax:
$ svn up -rXXXX
ref: Checkout a specific revision from subversion from command line
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Split string into an array in Bash
... a delimiter. If the value of IFS is null, no word splitting occurs.
Basically, for non-default non-null values of $IFS, fields can be separated with either (1) a sequence of one or more characters that are all from the set of "IFS whitespace characters" (that is, whichever of <space>, <t...