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Why does sun.misc.Unsafe exist, and how can it be used in the real world?
...ree Hash Tables
eg:sun.misc.Unsafe.compareAndSwapInt
it can make real JNI calls into native code that contains special instructions for CAS
read more about CAS here http://en.wikipedia.org/wiki/Compare-and-swap
The sun.misc.Unsafe functionality of the host VM can be used to allocate uninitialized o...
Visual Studio Editor does not underline errors anymore
...tor has stopped to underline Errors (this nifty wavy red lines). I can't really tell when, but it can be related to the installation of .Net Framework 3.5 SP 1 or the MVC Beta (which I guess is unlikely). Furthermore have I installed and uninstalled both CodeRush and Resharper for evaluation purpose...
Trigger change event of dropdown
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I don't know that much JQuery but I've heard it allows to fire native events with this syntax.
$(document).ready(function(){
$('#countrylist').change(function(e){
// Your event handler
});
// And now fire change event when the DOM is ready
$('#cou...
Print commit message of a given commit in git
...ive you the commit message and no commit sha, and you can "pipe" it. I actually use this as part of my CI script.
– Paulo Muñoz
Jun 7 '16 at 9:03
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Bash script - variable content as a command to run
...eries.txt | wc -l)
$(perl test.pl test2 $count)
However, if you want to call your Perl command later, and that's why you want to assign it to a variable, then:
#!/bin/bash
count=$(cat last_queries.txt | wc -l)
var="perl test.pl test2 $count" # You need double quotes to get your $count value subst...
Why is $$ returning the same id as the parent process?
... "parent" is a bit misleading (at least it was to me), it's actually the "top level" shell. For instance : echo $$; (echo $$; (echo $$)) echoes the same pid three times
– Martin Bouladour
Jul 20 '17 at 9:59
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Gulp.js task, return on src?
...nt it doesn't address why there are many examples out there of tasks that call gulp.src(... but don't return it.
– Mark Amery
Apr 17 '15 at 11:13
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Difference between Label and TextBlock
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Labels usually support single line text output while the TextBlock is intended for multiline text display.
For example in wpf TextBlock has a property TextWrapping which enables multiline input; Label does not have this.
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Connection string using Windows Authentication
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All actions performed by the process will be run with the permissions/privileges of that account. Don't grant more permissions than needed. A dedicated service account would be advisable. Would recommend checking out the DISA...
String replacement in batch file
...the following little trick:
set word=table
set str="jump over the chair"
call set str=%%str:chair=%word%%%
echo %str%
The call there causes another layer of variable expansion, making it necessary to quote the original % signs but it all works out in the end.
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