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How can I determine if a String is non-null and not only whitespace in Groovy?
Groovy adds the isAllWhitespace() method to Strings, which is great, but there doesn't seem to be a good way of determining if a String has something other than just white space in it.
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What does iterator->second mean?
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I'm sure you know that a std::vector<X> stores a whole bunch of X objects, right? But if you have a std::map<X, Y>, what it actually stores is a whole bunch of std::pair<const X, Y>s. That's exactly what a map is...
How to define @Value as optional
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What is the correct way to specify that @Value is not required?
Working on the assumption that by 'not required' you mean null then...
You have correctly noted that you can supply a default value to the right of a : character. Your example was @Value("${myValue:DEFA...
.NET Process.Start default directory?
...ks fine for the case where the Java application doesn't care what the "default" directory is, but fails for a Java application that only searches the current directory for support files.
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Mercurial .hgignore for Visual Studio 2010 projects
Not to be confused with Mercurial .hgignore for Visual Studio 2008 projects
2 Answers
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Target elements with multiple classes, within one rule
I have some HTML that would have elements with multiple classes, and I need to assign them within one rule, so that the same classes could be different within different containers. Say I have this in my CSS:
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Duplicate headers received from server
I found this error while exporting to pdf in chrome.
5 Answers
5
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If I have ACCESS_FINE_LOCATION already, can I omit ACCESS_COARSE_LOCATION?
I have a GPS app that already requests ACCESS_FINE_LOCATION permission in the manifest, now I want to add a library (MoPub) that requires ACCESS_COARSE_LOCATION .
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What's the difference of $host and $http_host in Nginx
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$host is a variable of the Core module.
$host
This variable is equal to line Host in the header of request or
name of the server processing the request if the Host header is not
available.
This variable may have a different value from $http_host in such
c...
How do Google+ +1 widgets break out of their iframe?
Somehow, hovering over a Google+ plus-one widget can introduce a tooltip-type deal that is clearly larger than the <iframe> element in which it is contained. I’ve inspected the DOM to confirm this.*
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