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Is there a C# type for representing an integer Range?
...e use Tuples or Points, but in the end you want your Range to be extensive and provide some handy methods that relate to a Range. It's also best if generic (what if you need a range of Doubles, or a range of some custom class?) For example:
/// <summary>The Range class.</summary>
/// &l...
SQL Data Reader - handling Null column values
...der.GetString(indexFirstName);
}
That's your only reliable way to detect and handle this situation.
I wrapped those things into extension methods and tend to return a default value if the column is indeed null:
public static string SafeGetString(this SqlDataReader reader, int colIndex)
{
if(!...
Get battery level and state in Android
How can I get battery level and state (plugged in, discharging, charging, etc)? I researched the developer docs and I found a BatteryManager class. But it doesn't contain any methods, just constants. How do I even use it?
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Macro vs Function in C
I always saw examples and cases where using a macro is better than using function.
11 Answers
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Union of dict objects in Python [duplicate]
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Why converting to list() ? def union2(dict1, dict2): return dict(dict1.items() + dict2.items())
– kinORnirvana
May 22 '17 at 14:48
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Jelly Bean DatePickerDialog — is there a way to cancel?
...explanation of the issue. I'm not sure if I should edit the other question and paste this content there, but I'm not comfortable changing someone else's question too much. ---
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How to determine equality for two JavaScript objects?
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If the object(s) can be converted to a JSON string, then it makes an equals() function simple.
– scotts
Nov 14 '12 at 18:28
3
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How to initialise memory with new operator in C++?
I'm just beginning to get into C++ and I want to pick up some good habits. If I have just allocated an array of type int with the new operator, how can I initialise them all to 0 without looping through them all myself? Should I just use memset ? Is there a “C++” way to do it?
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Plotting time in Python with Matplotlib
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You must first convert your timestamps to Python datetime objects (use datetime.strptime). Then use date2num to convert the dates to matplotlib format.
Plot the dates and values using plot_date:
dates = matplotlib.dates.date2num(list_of_d...
Why do people still use primitive types in Java?
...ing of primitive types so that int is wrapped to be java.lang.Integer , and so and and so forth.
21 Answers
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