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Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
...ch as the server itself. This way you eliminiate potential environment-specific problems. Packageless servlets work only in specific Tomcat+JDK combinations and this should never be relied upon.
In case of a "plain" IDE project, the class needs to be placed in its package structure inside "Java Re...
Flexbox not giving equal width to elements
... that is flex-basis. By default flex-basis is auto.
From the spec:
If the specified flex-basis is auto, the used flex basis is the value of the flex item’s main size property. (This can itself be the keyword auto, which sizes the flex item based on its contents.)
Each flex item has a fl...
How can I combine two commits into one commit? [duplicate]
...
You want to git rebase -i to perform an interactive rebase.
If you're currently on your "commit 1", and the commit you want to merge, "commit 2", is the previous commit, you can run git rebase -i HEAD~2, which will spawn an editor listing all the commits the rebase will traverse. You ...
“simple” vs “current” push.default in git for decentralized workflow
Functionally speaking, in a decentralized workflow, I don't see the difference between simple and current options for push.default config setting.
...
How to find common elements from multiple vectors?
...ect(a,b),c)
will do the job.
EDIT: More cleverly, and more conveniently if you have a lot of arguments:
Reduce(intersect, list(a,b,c))
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foll...
Using ping in c#
.../ Discard PingExceptions and return false;
}
finally
{
if (pinger != null)
{
pinger.Dispose();
}
}
return pingable;
}
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Automatic exit from bash shell script on error [duplicate]
I've been writing some shell script and I would find it useful if there was the ability to halt the execution of said shell script if any of the commands failed. See below for an example:
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Do I have to guard against SQL injection if I used a dropdown?
...ou expect.
$possibleOptions = array('All', 'Large', 'Medium', 'Small');
if(in_array($_POST['size'], $possibleOptions)) {
// Expected
} else {
// Not Expected
}
Then use mysqli_* if you are using a version of php >= 5.3.0 which you should be, to save your result. If used correctly thi...
How to know if an object has an attribute in Python
Is there a way in Python to determine if an object has some attribute? For example:
14 Answers
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Why would a post-build step (xcopy) occasionally exit with code 2 in a TeamCity build?
...ient's solution have a post-build event: xcopy the build output to a specific folder. This works fine when building locally. However, in TeamCity, I occasionally get
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