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Converting Stream to String and back…what are we missing?
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How to iterate over values of an Enum having flags?
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edited Nov 13 '10 at 6:33
answered Nov 13 '10 at 6:26
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Why isn't String.Empty a constant?
...ed by Microsoft here in the Shared Source Common Language Infrastructure 2.0 Release. The file to look at is sscli20\clr\src\bcl\system\string.cs.
The Empty constant holds the empty
string value. We need to call the
String constructor so that the
compiler doesn't mark this as a
literal.
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How to understand nil vs. empty vs. blank in Ruby
...used on strings, arrays and hashes and returns true if:
String length == 0
Array length == 0
Hash length == 0
Running .empty? on something that is nil will throw a NoMethodError.
That is where .blank? comes in. It is implemented by Rails and will operate on any object as well as work like .empt...
Determine if Android app is being used for the first time
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Kevin DionKevin Dion
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What should I use Android AccountManager for?
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edited May 23 '17 at 10:31
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answered Dec 23 '11 at 10:07
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Hidden Features of C++? [closed]
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308
votes
Most C++ programmers are familiar with the ternary operator:
x = (y < 0)...
Is there shorthand for returning a default value if None in Python? [duplicate]
...s also returns "default" if x is any falsy value, including an empty list, 0, empty string, or even datetime.time(0) (midnight).
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Changing a specific column name in pandas DataFrame
...columns = {'two':'new_name'})
In [28]: df
Out[28]:
one three new_name
0 1 a 9
1 2 b 8
2 3 c 7
3 4 d 6
4 5 e 5
Following is the docstring for the rename method.
Definition: df.rename(self, index=None, columns=None, co...
Java naming convention for static final variables [duplicate]
...nym as a name prefix, as in:
interface ProcessStates {
int PS_RUNNING = 0;
int PS_SUSPENDED = 1;
}
Obscuring involving constant names is rare:
Constant names normally have no lowercase letters, so they will not normally obscure names of packages or types, nor will they normally s...