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Order a MySQL table by two columns
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hahaha .... not is a good query, because if you try, never can reorder the "empty" values category... nice try in 2009 .. but in 2015 don't work correctly ;), The correct is "3" or "2" sub query
– user3402040
Feb 4 '16 at 15:38...
Convert a Scala list to a tuple?
...uple
t: (Int, Int, Int) = (1,2,3)
Also, you can use a wildcard operator if not sure about a size of the List
val t = x match {
case List(a, b, c, _*) => (a, b, c)
}
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R - Concatenate two dataframes?
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If you're getting the union of more than 2 data frames, you can use Reduce(rbind, list_of_data_frames) to mash them all together!
– Yourpalal
Aug 13 '15 at 21:12
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PHP Get name of current directory
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Note that if you use an include or a required, __DIR__ is the path of the included file and NOT the current directory
– Sebastien Horin
Feb 16 '15 at 12:41
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ArrayList initialization equivalent to array initialization [duplicate]
... @maerics, it's also worth mentioning that Arrays.asList() return an unmodifiable collection. :)
– Konstantin Yovkov
Oct 9 '13 at 9:46
12
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How can I multiply and divide using only bit shifting and adding?
How can I multiply and divide using only bit shifting and adding?
14 Answers
14
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Can you 'exit' a loop in PHP?
... 'three', 'four', 'stop', 'five');
while (list(, $val) = each($arr)) {
if ($val == 'stop') {
break; /* You could also write 'break 1;' here. */
}
echo "$val<br />\n";
}
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Rails 4 - passing variable to partial
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You need the full render partial syntax if you are passing locals
<%= render @users, :locals => {:size => 30} %>
Becomes
<%= render :partial => 'users', :collection => @users, :locals => {:size => 30} %>
Or to use the new hash sy...
What is the JSF resource library for and how should it be used?
...ike Mojarra and MyFaces and JSF component libraries like PrimeFaces and OmniFaces use it. No one of them use resource libraries this way. They use it (under the covers, by @ResourceDependency or UIViewRoot#addComponentResource()) the following way:
<h:outputScript library="javax.faces" name="jsf...
What's the difference between MemoryCache.Add and MemoryCache.Set?
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Add does nothing (returns false) if there is already a value for that key. Set does an insert or update, as necessary.
Remove + Add would leave a gap in the middle when another thread querying that key would get no clue (Set does not; the swap is typically ...