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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...
Where should Rails 3 custom validators be stored?
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If you place your custom validators in app/validators they will be automatically loaded without needing to alter your config/application.rb file.
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How to make a phone call using intent in Android?
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Every thing is fine.
i just placed call permissions tag before application tag in manifest file
and now every thing is working fine.
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How to send email from Terminal?
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This is a really good option. You can generate an app specific password for your Google account and this just delivers the email from your own account. Very cool!
– dakdad
Sep 12 '19 at 7:58
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How do I parse command line arguments in Java?
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Take a look at the more recent JCommander.
I created it. I’m happy to receive questions or feature requests.
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What is the native keyword in Java for?
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The native keyword is applied to a method to indicate that the method is implemented in native code using JNI (Java Native Interface).
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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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Taking screenshot on Emulator from Android Studio
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@Nino Handler I do just this, but no image appears on my desktop (and if I change the location, still no luck), so as a result I can't take screenshots using the emulator. Could you give some tips to get it sorted out?
– agiro
De...
What is the purpose of Node.js module.exports and how do you use it?
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You can use both exports and module.exports to import code into your application like this:
var mycode = require('./path/to/mycode');
The basic use case you'll see (e.g. in ExpressJS example code) is that you set properties on the exports object in a .js file that you then import using requi...
Hide Console Window in C# Console Application
....but the solution should be running.
My point here is, I want to keep the application running in the background, without any window coming up.
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