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Named regular expression group “(?Pregexp)”: what does “P” stand for?
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3 Answers
3
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java: Class.isInstance vs Class.isAssignableFrom
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3
this misses the case where the Foo is the same as clazz - in which case it returns true: Pauls top-voted answer below corrects this
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Rails.env vs RAILS_ENV
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371
According to the docs, #Rails.env wraps RAILS_ENV:
# File vendor/rails/railties/lib/initi...
what is the difference between 'transform' and 'fit_transform' in sklearn
... already called its .fit method.
In [12]: pc2 = RandomizedPCA(n_components=3)
In [13]: pc2.transform(X) # can't transform because it does not know how to do it.
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AttributeError Traceback (most rece...
Can I initialize a C# attribute with an array or other variable number of arguments?
...s int[] values) {
this.Values = values;
}
}
[MyCustomAttribute(3, 4, 5)]
class MyClass { }
Your syntax for array creation just happens to be off:
class MyCustomAttribute : Attribute {
public int[] Values { get; set; }
public MyCustomAttribute(int[] values) {
this.Valu...
How to remove a Gitlab project?
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Why is processing a sorted array faster than processing an unsorted array?
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32290
+1700
You...
How to change navbar collapse threshold using Twitter bootstrap-responsive?
I'm using Twitter Bootstrap 2.0.1 in a Rails 3.1.2 project, implemented with bootstrap-sass. I'm loading both the bootstrap.css and the bootstrap-responsive.css files, as well as the bootstrap-collapse.js Javascript.
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Pick a random element from an array
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326
Swift 4.2 and above
The new recommended approach is a built-in method on the Collection proto...