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The performance impact of using instanceof in Java
I am working on an application and one design approach involves extremely heavy use of the instanceof operator. While I know that OO design generally tries to avoid using instanceof , that is a different story and this question is purely related to performance. I was wondering if there is any per...
ASP.NET Web API OperationCanceledException when browser cancels the request
...dled exception (it logs the problem in the Application event log).
In the meantime, you could try something like the code below. It adds a top-level message handler that removes the content when the cancellation token fires. If the response has no content, the bug shouldn't be triggered. There's st...
Why does Maven have such a bad rep? [closed]
... a lot of talk on the internet about how Maven is bad. I have been using some features of Maven for a few years now and the most important benefit in my view is the dependency management.
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Is it better to return null or empty collection?
...the best way (best practice), do you return null or empty collection for a method that has a collection as a return type ?
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Automatically start forever (node) on system restart
... editing run the following replacing the "testuser" with your desired runtime user for the node process. If you choose a different user other than yourself, you will have to run this with sudo.
$ crontab -u testuser -e
If you have never done this before, it will ask you which editor you wish to e...
jQuery delete all table rows except first
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This should work:
$(document).ready(function() {
$("someTableSelector").find("tr:gt(0)").remove();
});
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The command rbenv install is missing
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The install command is not embedded into rbenv, it comes from the ruby-build plugin. You can install it using the command:
git clone https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build
On Mac OS X you can install it through homebrew:
brew install ruby...
Maven2 property that indicates the parent directory
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Soft keyboard open and close listener in an activity in Android
...he user clicks on the first EditText , the soft keyboard opens to enter some value in it. I want to set some other View 's visibility to Gone when the soft keyboard opens and also when the user clicks on the first EditText and also when the soft keyboard closes from the same EditText on the ...
Why does C# disallow readonly local variables?
Having a friendly debate with a co-worker about this. We have some thoughts about this, but wondering what the SO crowd thinks about this?
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