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Is there a difference between x++ and ++x in java?
...expected) result of some code execution leads as to the question. Hence my down vote.
– Alberto de Paola
Feb 18 '12 at 2:19
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Transposing a 2D-array in JavaScript
...s a short solution. just learned about the ... operator - used it to break down a string into an array of letters... thanks for the reply
– Julix
Sep 9 '16 at 17:15
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Git cherry pick vs rebase
... its own tip commits in one way or another. Yes, this is a heavily dumbed down description of what git rebase can do, but it's intentional, to try to make the general idea sink in.
Update to further explain an example of using git rebase being discussed.
Given this situation,The Book states:
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Eclipse: How do i refresh an entire workspace? F5 doesn't do it
...projects on OS X where Ctrl+A doesn't work:
Click the first project
Hold down Shift
Hold the ↓ key until they are all selected
Now press F5
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Returning a boolean from a Bash function
...ine 08
Line 13 returns false because of line 12
(Yes, this can be golfed down, but the entire example is contrived.)
Another common pattern
# Instead of doing this...
some_command
if [[ $? -eq 1 ]]; then
echo "some_command failed"
fi
# Do this...
some_command
status=$?
if ! $(exit $status);...
Displaying Windows command prompt output and redirecting it to a file
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Why the down vote? 95% of replies here have one thing in common: the output is redirected only after the initial command has finished: read the comments. UNIX utility tee outputs real time. wtee has the same functionality. If you don...
jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
...
You may find the following windows command line useful in tracking down the offending jar file. it creates an index of all the class files in all the jars in the folder. Execute from within the lib folder of your deployed app, then search the index.txt file for the offending class.
for /r...
When should you use constexpr capability in C++11?
...ife = MeaningOfLife( 6, 7 );
Now you have something that can be evaluated down to a constant while maintaining good readability and allowing slightly more complex processing than just setting a constant to a number.
It basically provides a good aid to maintainability as it becomes more obvious what...
Can't connect to local MySQL server through socket '/tmp/mysql.sock
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What an odd down vote. I posted the established procedure for several reasons: (1) other people were posting only part of the established procedure and it's better to be systematic about debugging, (2) there seemed to be some confusion a...
Pandas: drop a level from a multi-level column index?
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I had three levels deep and wanted to drop down to just the middle level. I found that dropping the lowest (level [2]) and then the highest (level [0]) worked best. >>>df.columns = df.columns.droplevel(2) >>>df.columns = df.columns.droplevel(0)
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