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Rails: What's a good way to validate links (URLs)?
...lidURIError
false
end
Of course, there are tons of improvements you can apply to this method, including checking for a path or a scheme.
Last but not least, you can also package this code into a validator:
class HttpUrlValidator < ActiveModel::EachValidator
def self.compliant?(value)
ur...
nano error: Error opening terminal: xterm-256color
...this may be one reason why nano may sometimes fail - e. g. if the problem happens at ncurses/terminfo instead.
– shevy
Aug 29 '16 at 21:38
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jsonify a SQLAlchemy result set in Flask [duplicate]
...rror, now I'm getting the error referencing the SQLAlchemy object as in: myapp.models.Rating object at 0x102f25c10&gt; is not JSON serializable. Any clue? The object only contains Strings and Ints.
– mal-wan
Aug 18 '11 at 7:11
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How to use nodejs to open default browser and navigate to a specific URL
I'm writing an application using Node.js.
5 Answers
5
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Detect Retina Display
...mode -- even though we know that device does not contain a Retina display. Apple changed this behavior in iOS4.2 for the iPad: it returns 1.0 in both 1x and 2x modes. You can test this yourself in the simulator.
I test for the -displayLinkWithTarget:selector: method on the main screen which exists ...
How to know which version of Symfony I have?
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Run app/console --version (for Symfony3: bin/console --version), it should give you a pretty good idea. On a random project of mine, the output is:
Symfony version 2.2.0-DEV - app/dev/debug
If you can't access the console, try...
How to change package name of Android Project in Eclipse?
...ndroid project created in Eclipse . I want to modify the package name and application of the project. How do I do that in Eclipse?
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usr/bin/ld: cannot find -l
...ment work.)
For other architectures (most notably RPM) similar procedures apply, though the details will be different.
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Navigation bar appear over the views with new iOS7 SDK
In the earlier versions it is working correctly. The search bar is appearing below the statusbar and navigation bar. The tableview is appearing below the search bar
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How to use Namespaces in Swift?
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Answered by SevenTenEleven in the Apple dev forum:
Namespaces are not per-file; they're per-target (based on the
"Product Module Name" build setting). So you'd end up with something
like this:
import FrameworkA
import FrameworkB
FrameworkA.foo()
...