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Finding ALL duplicate rows, including “elements with smaller subscripts”
...or or data frame is a duplicate of an element with a smaller subscript. So if rows 3, 4, and 5 of a 5-row data frame are the same, duplicated will give me the vector
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Parsing JSON from XmlHttpRequest.responseJSON
... with any browser that supports XMLHttpRequest and JSON.
JSONHttpRequest
If you prefer to use responseJSON, but want a more lightweight solution than JQuery, you might want to check out my JSONHttpRequest. It works exactly like a normal XMLHttpRequest, but also provides the responseJSON property. ...
.NET Format a string with fixed spaces
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If you look for the green check vs. the highest up-votes, you don't know how to SO ;)
– Dave Jellison
Mar 18 '16 at 19:23
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What's the difference between NOT EXISTS vs. NOT IN vs. LEFT JOIN WHERE IS NULL?
...S vs. LEFT JOIN / IS NULL: MySQL
In a nutshell:
NOT IN is a little bit different: it never matches if there is but a single NULL in the list.
In MySQL, NOT EXISTS is a little bit less efficient
In SQL Server, LEFT JOIN / IS NULL is less efficient
In PostgreSQL, NOT IN is less efficient
In Oracl...
Should Javadoc comments be added to the implementation?
...ds that are implementation only (not overrides), sure, why not, especially if they are public.
If you have an overriding situation and you are going to replicate any text, then definitely not. Replication is a surefire way of causing discrepancies. As a result, users would have a different understa...
html - table row like a link
...t my table row as link to something. I can use only css and html. I tried different things from div in row to something another, but still can't make it works.
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How to wrap async function calls into a sync function in Node.js or Javascript?
...e it work properly. you should improve your documentation for this module, if you wish that it gets used more. I doubt the authors know exactly what the ramifications are for using the module, and if they do, they certainly don't document them.
– Alexander Mills
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PHP Get all subdirectories of a given directory
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@developerbmw Note the word or. He presents two different methods of attaining the goal.
– Ken Wayne VanderLinde
Jan 8 '16 at 19:20
7
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Run a Java Application as a Service on Linux
...id
case $1 in
start)
echo "Starting $SERVICE_NAME ..."
if [ ! -f $PID_PATH_NAME ]; then
nohup java -jar $PATH_TO_JAR /tmp 2>> /dev/null >> /dev/null &
echo $! > $PID_PATH_NAME
echo "$SERVICE_NAME started ..."
else
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Architecture of a single-page JavaScript web application?
...mplex single-page JS web application be structured on the client-side? Specifically I'm curious about how to cleanly structure the application in terms of its model objects, UI components, any controllers, and objects handling server persistence.
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