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Anonymous recursive PHP functions
...n &.
– newacct
Apr 20 '13 at 10:05
3
Mind Blown! Thanks a lot! How did I not know about this ...
Entity framework code-first null foreign key
I have a User < Country model. A user belongs to a country, but may not belong to any (null foreign key).
4 Answers
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In php, is 0 treated as empty?
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just add an @strlen to omit the error log, just in case... to not create a big log
– Miguel
Jun 8 '15 at 12:06
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Whether a variable is undefined [duplicate]
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if(undefinedVar) will throw an error, but if(someObj.undefinedProperty) will not. In the latter case, you can also skip typeof and use === undefined (or !==), without quotes.
– eyelidlessness
Sep 28 '09 at 8:56
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Test if string is a number in Ruby on Rails
...100ms
# to_s 47509 i/100ms
# to_s fail 50573 i/100ms
# regexp 45187 i/100ms
# regexp fail 42566 i/100ms
# -------------------------------------------------
# cast 2353703.4 (±4.9%) i/s - 11726940 in 4.998270s
# ...
Git push rejected after feature branch rebase
...hat case), but as git push performs only fast-forward merges it throws and error.
And what --force option does is just ignoring state of remote branch and setting it to the commit you're pushing into it. So git push --force origin feature-branch simply overrides origin/feature-branch with local fea...
Return XML from a controller's action in as an ActionResult?
...ms, unless you're working on 11 year old computing systems that exhibit an error.
– Drew Noakes
Apr 17 '13 at 10:40
1
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Django - “no module named django.core.management”
I get the following error when trying to run Django from the command line.
21 Answers
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Solving a “communications link failure” with JDBC and MySQL [duplicate]
I'm trying to connect to the local MySQL server but I keep getting an error.
25 Answers
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What is the use case of noop [:] in bash?
...o" != "1" ]
then
#echo Success
fi
Which causes bash to give a syntax error:
line 4: syntax error near unexpected token `fi'
line 4: `fi'
Bash can't have empty blocks (WTF). So you add a no-op:
if [ "$foo" != "1" ]
then
#echo Success
:
fi
or you can use the no-op to comment out...