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variable === undefined vs. typeof variable === “undefined”
... makes sense. The jQuery team is likely more concerned about the impact on file size. foo === undefined, when minimized, is probably something like f===u, whereas typeof foo === "undefined" can only be reduced to typeof f==="undefined".
– Patrick McElhaney
Jan ...
Where is the “Fold” LINQ Extension Method?
... @kdbanman errr, ⁺¹, it is really interesting why back in the time it didn't work for me… :/ You're right, it does work.
– Hi-Angel
Nov 29 '15 at 23:23
...
PHP prepend associative array with literal keys?
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Loadbalancing web sockets
...answered Oct 21 '13 at 16:44
DavidDavid
2111 bronze badge
...
How to set default values in Rails?
...efault value for that column on that table, setting them in a DB migration file is the easiest way:
class SetDefault < ActiveRecord::Migration
def self.up
change_column :people, :last_name, :type, :default => "Doe"
end
def self.down
# You can't currently remove default values i...
How to upgrade Git to latest version on macOS?
...if you added:
export PATH=/usr/local/git/bin:/usr/local/sbin:$PATH
to a file named .bashrc in your home folder. This way any other software that you might install in /usr/local/git/bin will also be found first.
For an easy way to do this just type:
echo "export PATH=/usr/local/git/bin:/usr/loca...
Latex Remove Spaces Between Items in List
... bar
\item baz
\end{itemize}
\end{document}
The enumitem package provides a lot of features to customize bullets, numbering and lengths.
The paralist package provides very compact lists: compactitem, compactenum and even lists within paragraphs like inparaenum and inparaitem.
...
The order of keys in dictionaries
...n of Python, dictionaries maintain insertion order by default. This is considered an implementation detail though; you should still use collections.OrderedDict if you want insertion ordering that's guaranteed across other implementations of Python.
Python >=2.7 and <3.6
Use the collections.O...
R apply function with multiple parameters
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How to set a single, main title above all the subplots with Pyplot?
...
Note, it is plt.suptitle() and not plt.subtitle(). I did not realize this in the beginning and got a nasty error! :D
– Dataman
May 10 '16 at 15:40
add a c...