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In MVVM should the ViewModel or Model implement INotifyPropertyChanged?
Most MVVM examples I have worked through have had the Model implement INotifyPropertyChanged , but in Josh Smith's CommandSink example the ViewModel implements INotifyPropertyChanged .
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C++11 range based loop: get item by value or reference to const
...tems as well as want to avoid making copies, then auto const & is the correct choice:
for (auto const &x : vec)
Whoever suggests you to use auto & is wrong. Ignore them.
Here is recap:
Choose auto x when you want to work with copies.
Choose auto &x when you want to work with or...
Is quoting the value of url() really necessary?
...racter.
If you have special characters in your URL, you should use quotes or escape the characters (see below).
Syntax and basic data types
The format of a URI value is 'url(' followed by optional white space followed by an optional single quote (') or double quote (") character followed by th...
What's the difference of strings within single or double quotes in groovy?
Is there any difference? Or just like javascript to let's input ' and " easier in strings?
2 Answers
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Should I use tag for icons instead of ? [closed]
Facebook's HTML and Twitter Bootstrap HTML (before v3) both use the <i> tag to display icons.
7 Answers
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Finding local IP addresses using Python's stdlib
How can I find local IP addresses (i.e. 192.168.x.x or 10.0.x.x) in Python platform independently and using only the standard library?
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Single script to run in both Windows batch and Linux Bash?
... character sequence “:;”. If you’re writing mostly one-liner scripts or, as may be the case, can write one line of sh for many lines of cmd, the following might be fine. Don’t forget that any use of $? must be before your next colon : because : resets $? to 0.
:; echo "Hi, I’m ${SHELL}.";...
PostgreSQL error 'Could not connect to server: No such file or directory'
Like some others I am getting this error when I run rake db:migrate in my project or even try most database tasks for my Ruby on Rails 3.2 applications.
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C++ catch blocks - catch exception by value or reference? [duplicate]
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The standard practice for exceptions in C++ is ...
Throw by value, catch by reference
Catching by value is problematic in the face of inheritance hierarchies. Suppose for your example that there is another type MyException which inherits fro...
Should I use scipy.pi, numpy.pi, or math.pi?
In a project using SciPy and NumPy, should I use scipy.pi , numpy.pi , or math.pi ?
2 Answers
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