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Include all existing fields and add new fields to document
...s mostly created to group/calculate data from collection fields (sum, avg, etc.) and return all the collection's fields is not direct purpose.
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How to install Boost on Ubuntu
...d it to your LD LIBRARY PATH:
sudo sh -c 'echo "/usr/local/lib" >> /etc/ld.so.conf.d/local.conf'
Reset the ldconfig:
sudo ldconfig
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subtle differences between JavaScript and Lua [closed]
...onal operator (?: vs and/or), and, as of 5.3, bitwise operators (&, |, etc. vs. metamethods ).
UPDATE: JS now has the exponentiation operator **.
JS has increment/decrement, type operators (typeof and instanceof), additional assignment operators and additional comparison operators.
In JS, the...
How can I redirect HTTP requests made from an iPad?
...full absolute URL.
Ubuntu example below:
The first step is to edit the /etc/hosts file in your dev server. Add the server's local IP, pointing to your site.
127.0.0.1 dev.mysite.com
This hosts file will be used by your Apache proxy when it tries to resolve requests from your iPhone / iPad. So l...
Get the latest record from mongodb collection
... impact will it have if we place limit at the end also how last record is fetched when your are limiting the output to just one document and it must be the top document in collection.
– kailash yogeshwar
Nov 23 '16 at 16:58
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How to automatically remove trailing whitespace in Visual Studio 2008?
...what it to mess with anything else in the file (tabs, spaces, indentation, etc). So far, VisualStudio is the only IDE that I've work with that cannot do it. Any other half-baked editor (let alone IDE) can do it. I can't configure CodeMaid to some formatting, because formatting varies.
...
What is default color for text in textview?
... Most correct solution. Preserve text color states (disabled, etc)
– dasar
Jan 11 '17 at 12:02
From my ob...
How to profile a bash shell script slow startup?
...another version that can output nanoseconds), do this at the beginning of /etc/bash.bashrc (or wherever you'd like to begin a trace in any Bash script):
PS4='+ $(date "+%s.%N")\011 '
exec 3>&2 2>/tmp/bashstart.$$.log
set -x
add
set +x
exec 2>&3 3>&-
at the end of ~/.bas...
How to make a Python script run like a service or daemon in Linux
.... full path to script'
/usr/bin/python $script &
now make a file in /etc/init.d/scriptname
#! /bin/sh
PATH=/bin:/usr/bin:/sbin:/usr/sbin
DAEMON=/home/.. path to shell script scriptname created to run python script
PIDFILE=/var/run/scriptname.pid
test -x $DAEMON || exit 0
. /lib/lsb/init-f...
Double vs. BigDecimal?
...ouble). 1/3 could be exactly expressed in base 3, base 6, base 9, base 12, etc. and 1/7 could be expressed exactly in base 7, base 14, base 21, etc. BigDecimal advantages are that it is arbitrary precision and that humans are used to the rounding errors you get in base 10.
– pr...