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What does $$ mean in the shell?
... use a double dollar sign ( $$ ). This does produce a number that varies from time to time... but if you call it repeatedly, it returns the same number. (The solution is to just use the time.)
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How can I unit test a GUI?
... Still, presentation logic will be in the GUI. At times, that may be far from trivial
– Andrea
Mar 28 '12 at 9:25
16
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How do I forward parameters to other command in bash script?
... only 2 : ${@:2:1}"
echo "params 2 and 3 : ${@:2:2}"
echo "params all from 2: ${@:2:99}"
echo "params all from 2: ${@:2}"
run it:
$ chmod u+x r.sh
$ ./r.sh 1 2 3 4 5 6 7 8 9 10
the result is:
params only 2 : 2
params 2 and 3 : 2 3
params all from 2: 2 3 4 5 6 7 8 9 10
params all from 2...
How can I get query string values in JavaScript?
...r the hash resides in the window.location.hash property, which is separate from the window.location.search property. If the hash changes, it doesn't affect the querystring at all.
– Andy E
Jul 14 '10 at 9:20
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What does the servlet value signify
... our application we are having a few servlets defined. Here is the excerpt from the web.xml for one of the servlets:
11 A...
Send Email Intent
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The 'correct' way is the answer from Magnus. I recommend original poster to change the accepted answer.
– jhabbott
Feb 12 '13 at 16:33
8
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Pandas: Setting no. of max rows
...y').
You can set an option only temporarily for this one time like this:
from IPython.display import display
with pd.option_context('display.max_rows', 100, 'display.max_columns', 10):
display(df) #need display to show the dataframe when using with in jupyter
#some pandas stuff
You can a...
Apache shows PHP code instead of executing it
...php$>
SetHandler application/x-httpd-php
</FilesMatch>
Run this from the terminal:
sudo a2dismod mpm_event && sudo a2enmod mpm_prefork && sudo a2enmod php7
Then don't forget to restart Apache so it knows you changed stuff:
sudo service apache2 restart
This is a summa...
How do I reverse an int array in Java?
...egardless, there's no point micro-optimizing until you have clear evidence from profiling that it is necessary/helpful.
– Nicu Stiurca
Apr 7 '14 at 18:11
9
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Using fonts with Rails asset pipeline
...nd all non-JS/CSS files (this will include all image assets automatically) from app/assets folders" (see here)
– Eric L.
Nov 6 '13 at 13:26
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