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What are Transient and Volatile Modifiers?
...eserialized, the field will be initialized to the default value; i.e. null for a reference type, and zero or false for a primitive type. Note that the JLS (see 8.3.1.3) does not say what transient means, but defers to the Java Object Serialization Specification. Other serialization mechanisms may pa...
Heroku/devise - Missing host to link to! Please provide :host parameter or set default_url_options[:
...}
Make sure you change host to your production url and keep it localhost for development. This is for the mailer, it needs a default email to send out notices such as confirmations etc...
You should check the logs on the heroku server heroku logs run that from the console and it will tell you t...
How do I flag a method as deprecated in Objective-C 2.0?
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Interestingly Xcode does not give me any warnings for using a method marked as depreciated. Is there a compiler flag that needs to be set?
– memmons
Sep 30 '11 at 18:07
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Including Google Web Fonts link or import?
...
For 90%+ of the cases you likely want the <link> tag. As a rule of thumb, you want to avoid @import rules because they defer the loading of the included resource until the file is fetched.. and if you have a build proce...
How to implement my very own URI scheme on Android
... anything), and made sure to add the DEFAULT category (as this is required for all implicit intents). Also notice how I added the category BROWSABLE - this is not necessary, but it will allow your URIs to be openable from the browser (a nifty feature).
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How do I pass extra arguments to a Python decorator?
...decorator(func):
print("Decorating function {}, with parameter {}".format(func.__name__, param))
return function_wrapper(func) # assume we defined a wrapper somewhere
return actual_decorator
The outer function will be given any arguments you pass explicitly, and should return ...
PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
...se a keyword argument is essentially different than a variable assignment.
For example, there is plenty of code like this:
kw1 = some_value
kw2 = some_value
kw3 = some_value
some_func(
1,
2,
kw1=kw1,
kw2=kw2,
kw3=kw3)
As you see, it makes complete sense to assign a variable to a...
What is the benefit of using Fragments in Android, rather than Views?
When developing for Android , you can set your target (or minimum) sdk to 4 (API 1.6) and add the android compatibility package (v4) to add support for Fragments . Yesterday I did this and successfully implemented Fragments to visualize data from a custom class.
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Difference between '..' (double-dot) and '…' (triple-dot) in range generation?
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The documentation for Range† says this:
Ranges constructed using .. run from the beginning to the end inclusively. Those created using ... exclude the end value.
So a..b is like a <= x <= b, whereas a...b is like a <= x < b...
Custom error pages on asp.net MVC3
I'm developing a MVC3 base website and I am looking for a solution for handling errors and Render custom Views for each kind of error. So imagine that I have a "Error" Controller where his main action is "Index" (generic error page) and this controller will have a couple more actions for the errors ...