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Volatile boolean vs AtomicBoolean
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They are just totally different. Consider this example of a volatile integer:
volatile int i = 0;
void incIBy5() {
i += 5;
}
If two threads call the function concurrently, i might be 5 afterwards, since the compiled code will be somewh...
How do I use variables in Oracle SQL Developer?
...with UPDATE instead of select?
– Ron Jensen - We are all Monica
Aug 26 '16 at 22:16
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Ruby get object keys as array
...Hash:
http://ruby-doc.org/core-1.9.3/Hash.html#method-i-keys
You'll find all the different methods available for each class.
If you don't know what you're dealing with:
puts my_unknown_variable.class.to_s
This will output the class name.
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How do I capture the output of a script if it is being ran by the task scheduler?
...is as the command string in Task Scheduler:
cmd /c yourscript.cmd > logall.txt
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Django 1.7 - makemigrations not detecting changes
... may happen due to the following reasons:
You did not add the app in INSTALLED_APPS list in settings.py
(You have to add either the app name or the dotted path to the subclass of AppConfig in apps.py in the app folder, depending on the version of django you are using). Refer documentation: INST...
ASP.NET MVC controller actions that return JSON or partial html
...tionMethod() {
return Json(new {foo="bar", baz="Blech"});
}
Then just call the action method using Ajax. You could use one of the helper methods from the ViewPage such as
<%= Ajax.ActionLink("SomeActionMethod", new AjaxOptions {OnSuccess="somemethod"}) %>
SomeMethod would be a javascri...
How do I check if an array includes a value in JavaScript?
...r (o in array) which shouldn't be done when looping through the array generally...
– Damir Zekić
Oct 12 '12 at 13:18
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TransactionScope automatically escalating to MSDTC on some machines?
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Yes, the details are correct, and is anyone actually looking at the code? There are two connections within the transaction scope, however, there is only ever one connection instanced and opened at a single moment in time. Also, no, DTC is not running on the machines that...
Bash script absolute path with OS X
...ee simple steps are going to solve this and many other OS X issues:
Install Homebrew
brew install coreutils
grealpath .
(3) may be changed to just realpath, see (2) output
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How to profile methods in Scala?
What is a standard way of profiling Scala method calls?
12 Answers
12
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