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Is there a performance gain in using single quotes vs double quotes in ruby?
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$ ruby -v
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.0.0]
$ cat benchmark_quotes.rb
# As of Ruby 1.9 Benchmark must be required
require 'benchmark'
n = 1000000
Benchmark.bm(15) do |x|
x.report("assign single") { n.times do; c = 'a string'; end}
x.report("assi...
log4net argument to LogManager.GetLogger
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I'm an NLog user, and usually this boils down to :
var _logger = LogManager.GetCurrentClassLogger();
It seemed a bit strange that you need to go through reflection in Log4Net, so I had a look in the NLog source code, and lo and behold, this is what they do for you:
[MethodImpl...
How to include file in a bash shell script
...t . is POSIX compliant whereas source isn't
– Mathieu_Du
Feb 20 '15 at 19:38
But here source is not exactly the includ...
How to add reference to a method parameter in javadoc?
... And make a pull request to javadoc :)
– Juh_
Nov 5 '14 at 13:08
add a comment
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For files in directory, only echo filename (no path)
...g more about parameter expansion: wiki.bash-hackers.org/syntax/pe#substring_removal
– DougW
Jan 26 '12 at 1:59
1
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Why can I pass 1 as a short, but not the int variable i?
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So... it does not matter how explicit i am... >_<. Do you have any idea if i can detect if a litereal was passed or a int variable?
– user34537
Jul 11 '12 at 12:21
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how to show progress bar(circle) in an activity having a listview before loading the listview with d
...this (this could go in your onCreate()
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setProgressBarIndeterminateVisibility(true);
And after you are done displaying the list, to hide it.
setProgressBarIndeterminateVisibility(false);
IN THE LAYOUT (The XML)
<LinearLayout
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Iteration over std::vector: unsigned vs signed index variable
...crement. You should prefer iterators. Some people tell you to use std::size_t as the index variable type. However, that is not portable. Always use the size_type typedef of the container (While you could get away with only a conversion in the forward iterating case, it could actually go wrong all th...
Android, ListView IllegalStateException: “The content of the adapter has changed but ListView did no
...this.adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1);
this.list = this.getListView();
this.list.setAdapter(this.adapter);
this.task = new AsyncTask<Void, String, Void>() {
Random r = new Random();
int[] delet...
Is there a PHP function that can escape regex patterns before they are applied?
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preg_quote() is what you are looking for:
Description
string preg_quote ( string $str [, string $delimiter = NULL ] )
preg_quote() takes str and puts a
backslash in front of every character
that is part of the reg...