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How to count occurrences of a column value efficiently in SQL?
...nswered Oct 10 '12 at 16:00
DamianDamian
68688 silver badges1414 bronze badges
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Fast Linux File Count for a large number of files
...lot of them. Also there will be no output until all of the names are read and sorted. Use the ls -f option to turn off sorting.
ls -f | wc -l
Note that this will also enable -a, so ., .., and other files starting with . will be counted.
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Set a default parameter value for a JavaScript function
...ments which I set a default on, which get used if the value isn't defined (and ignored if the value is passed). In Ruby you can do it like this:
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Is there an easy way to create ordinals in C#?
...he answer, please supply your own, showing us the "proper" way to do this, and why it matters.
– B2K
Apr 6 '17 at 16:05
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jQuery remove options from select
... answered Oct 5 '09 at 4:05
Andrew HareAndrew Hare
310k6363 gold badges611611 silver badges614614 bronze badges
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How to convert JSON to XML or XML to JSON?
...on.NET framework, is it possible to convert a string in JSON to XML format and viceversa?
13 Answers
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How to sort objects by multiple keys in Python?
... u'Utley, Alex', u'Total_Points': 96.0},
{u'TOT_PTS_Misc': u'Russo, Brandon', u'Total_Points': 96.0},
{u'TOT_PTS_Misc': u'Chappell, Justin', u'Total_Points': 96.0},
{u'TOT_PTS_Misc': u'Foster, Toney', u'Total_Points': 80.0},
{u'TOT_PTS_Misc': u'Lawson, Roman', u'Total_Points': 80...
log4j configuration via JVM argument(s)?
...o I have to set/pass as arguments to the JVM to get log4j to run properly? And by properly I mean not complain and print to the console. Can I see a typical example?
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Filter data.frame rows by a logical condition
... intended for use interactively. For programming it is better to use the standard subsetting functions like [, and in particular the non-standar d evaluation of argument subset can have unanticipated consequen ces."
– Aleksandar Dimitrov
Mar 9 '13 at 13:52
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In MVVM should the ViewModel or Model implement INotifyPropertyChanged?
... the Model implement INotifyPropertyChanged , but in Josh Smith's CommandSink example the ViewModel implements INotifyPropertyChanged .
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