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How to create a custom string representation for a class object?
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@ThomasLeonard: stackoverflow.com/questions/39013249/metaclass-in-python3-5
– Ignacio Vazquez-Abrams
Nov 8 '17 at 18:34
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Bash script processing limited number of commands in parallel
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4 Answers
4
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Two sets of parentheses after function call
...return function(y){
return x + y;
};
}
var addTwo = add(2);
addTwo(4) === 6; // true
add(3)(4) === 7; // true
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Jackson and generic type reference
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edited Nov 12 '12 at 1:46
Jherico
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answered Ju...
Open file dialog and select a file using WPF controls and C#
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444
Something like that should be what you need
private void button1_Click(object sender, RoutedE...
Singleton by Jon Skeet clarification
...epends on what laziness guarantees you need. You should be aware that .NET 4 changes the actual type initialization semantics somewhat (still within the spec, but lazier than before).
Do you really need this pattern though? Are you sure you can't get away with:
public sealed class Singleton
{
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Calling a base class's classmethod in Python
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– ars-longa-vita-brevis
Jun 11 '14 at 19:06
Yeah, this only works for new-style classes, which derive from object. ...
How does one reorder columns in a data frame?
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354
Your dataframe has four columns like so df[,c(1,2,3,4)].
Note the first comma means keep all the...
List distinct values in a vector in R
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Do you mean unique:
R> x = c(1,1,2,3,4,4,4)
R> x
[1] 1 1 2 3 4 4 4
R> unique(x)
[1] 1 2 3 4
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