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Evaluate if list is empty JSTL
... Although it is documented that the empty operator doesn't play well with Set implementation of Collections in JSTL prior to v2.0
– casey
Aug 19 '10 at 20:28
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Length of string in bash
...ralit\303\251s').
Nota: According to Isabell Cowan's comment, I've added setting to $LC_ALL along with $LANG.
Length of an argument
Argument work same as regular variables
strLen() {
local bytlen sreal oLang=$LANG oLcAll=$LC_ALL
LANG=C LC_ALL=C
bytlen=${#1}
printf -v sreal %q "$...
Getting name of the class from an instance
...ing, but I know that tempers get hot pretty quickly in these semi-faceless settings. Thanks for being good natured about it. (In fact, +1 for practicing encapsulation).
– danh
Sep 17 '14 at 22:07
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Vagrant reverse port forwarding?
...g for vagrant's potentially differente config if you have multiple vagrant setup: vagrant ssh-config | ssh -F /dev/stdin $BOX -R $PORT_VM:localhost:$PORT -N
– ibizaman
Nov 11 '15 at 10:36
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Behaviour for significant change location API when terminated/suspended?
...ike 30 minutes? 2 hrs? 5 hrs? ) The reason I'm asking this is because I've set up a region to monitor. Tried many times to see my app getting launched but only once I got to relaunch the app. The other times the didExitRegion callback but I wasn't able to startLocationUpdates from there as it wasn't...
Recommended way to save uploaded files in a servlet application
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File uploads = new File("/path/to/uploads");
Environment variable via SET UPLOAD_LOCATION=/path/to/uploads:
File uploads = new File(System.getenv("UPLOAD_LOCATION"));
VM argument during server startup via -Dupload.location="/path/to/uploads":
File uploads = new File(System.getProperty("up...
Truncating long strings with CSS: feasible yet?
...erflow: ellipsis;
-o-text-overflow: ellipsis;
-moz-binding: url('assets/xml/ellipsis.xml#ellipsis');
}
ellipsis.xml file contents
<?xml version="1.0"?>
<bindings
xmlns="http://www.mozilla.org/xbl"
xmlns:xbl="http://www.mozilla.org/xbl"
xmlns:xul="http://www.mozilla.org/keym...
mongodb: insert if not exists
...":"value3"}
You can also specify what data you want to write:
data = {"$set":{"key2":"value2"}}
Now your selected document will update the value of "key2" only and leave everything else untouched.
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How to pass command line argument to gnuplot?
...ile
In a Gnuplot script:
#! /usr/bin/gnuplot
name=system("echo $name")
set title name
plot name using ($16 * 8):20 with linespoints notitle
pause -1
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How to empty a list in C#?
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Can you verify that setting list = new List<>() is actually slower than list.Clear();? According to MSDN (link below) list.Clear(); is an O(N) operation, and I can't imagine instantiating a new list would take longer than that. msdn.micr...