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Convert NSArray to NSString in Objective-C
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Won't this accomplish the same thing as calling [array description]?
– TechZen
Dec 1 '09 at 20:55
10
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Single Line Nested For Loops
...ertools.product, which returns an iterable yielding tuples of values from all the iterables you pass it. That is, itertools.product(A, B) yields all values of the form (a, b), where the a values come from A and the b values come from B. For example:
import itertools
A = [50, 60, 70]
B = [0.1, 0.2...
How can I write a regex which matches non greedy? [duplicate]
...eedy ? works perfectly fine. It's just that you need to select dot matches all option in the regex engines (regexpal, the engine you used, also has this option) you are testing with. This is because, regex engines generally don't match line breaks when you use .. You need to tell them explicitly tha...
Select by partial string from a pandas DataFrame
...egex search is not required, so specify regex=False to disable it.
#select all rows containing "foo"
df1[df1['col'].str.contains('foo', regex=False)]
# same as df1[df1['col'].str.contains('foo')] but faster.
col
0 foo
1 foobar
Performance wise, regex search is slower than substring s...
How to get a property value based on the name
....Name == propertyName)
.GetValue(car, null);
}
If you want to be really fancy, you could make it an extension method:
public static object GetPropertyValue(this object car, string propertyName)
{
return car.GetType().GetProperties()
.Single(pi => pi.Name == propertyName)
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How do you clear a slice in Go?
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It all depends on what is your definition of 'clear'. One of the valid ones certainly is:
slice = slice[:0]
But there's a catch. If slice elements are of type T:
var slice []T
then enforcing len(slice) to be zero, by the a...
Java `final` method: what does it promise?
...method can't be overridden (for object scope) or hidden (for static). This allows the original developer to create functionality that cannot be changed by subclasses, and that is all the guarantee it provides.
This means that if the method relies on other customizable components like non-public fie...
How do I use brew installed Python as the default Python?
... to Homebrew (after using fink and macport) on Mac OS X 10.6.2. I have installed python 2.7 with
19 Answers
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Android Studio Gradle Configuration with name 'default' not found
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./gradlew tasks --info this will show the information of all the tasks. I think this would be helpful to find out what is going wrong.
– srain
Jun 7 '15 at 6:01
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Using OpenGl with C#? [closed]
... I don't think these functions are very representative, because they are all deprecated and removed from the OpenGl core profile.
– Arne
Apr 23 '13 at 16:55
6
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