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In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
...se using string.Empty prevents you from attaining consistency in your code base: you must use two different entities to express the same thing. And to add to the list of things you can't do: you can't use string.Empty with attributes.
– Pragmateek
Nov 7 '13 at ...
JSON datetime between Python and JavaScript
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The lambda can be adapted to call the base implementation on non-datetime types, so TypeError can be raised if needed: dthandler = lambda obj: obj.isoformat() if isinstance(obj, datetime) else json.JSONEncoder().default(obj)
– Pascal Bourque...
How to understand nil vs. empty vs. blank in Ruby
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64
Quick tip: !obj.blank? == obj.present?
Can be handy/easier on the eyes in some expressions
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How can you profile a Python script?
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Are you coloring based on the amount of calls? If so, you should color based on time because the function with the most calls isn't always the one that takes the most time.
– red
Aug 6 '13 at 12:21
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Scroll back to the top of scrollable div
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64
Another way to do it with a smooth animation is like this
$("#containerDiv").animate({ scroll...
How do I get the time difference between two DateTime objects using C#?
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64
You want the TimeSpan struct:
TimeSpan diff = dateTime1 - dateTime2;
A TimeSpan object re...
Targeting only Firefox with CSS
...r: red;
}
}
<h1>This should be red in FF</h1>
It's based on yet another Mozilla specific CSS extension. There's a whole list for these CSS extensions right here: Mozilla CSS Extensions.
share
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Is there Selected Tab Changed Event in the standard WPF Tab Control
...event handler. That way you know exactly which tab was selected/deselected based on the PropertyName and you have a special handler for each tab.
Example: MainView.xaml
<TabControl>
<TabItem Header="My tab 1" Selector.IsSelected="{Binding IsMyTab1Selected}"> ... </TabItem>
<...
How to easily map c++ enums to strings
...s elsewhere on StackOverflow. Repeating it here. Basically it's a solution based on variadic macros, and is pretty easy to use:
#define AWESOME_MAKE_ENUM(name, ...) enum class name { __VA_ARGS__, __COUNT}; \
inline std::ostream& operator<<(std::ostream& os, name value) { \
std::string...
Targeting .NET Framework 4.5 via Visual Studio 2010
...figuration manager, create a new solution platform for ".NET 4.5" (you can base it off "Any CPU") and make sure ".NET 4.5" is selected for the solution.
Build your project and check for errors.
Assuming the build completed you can verify that you are indeed targeting 4.5 by adding a reference to a 4...