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Difference between object and class in Scala
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I think ziggystar's answer is more precise, the class is an anonymous class, unless a corresponding class named Commerce is explicitly defined (then Commerce object will be a companion object to the Commerce class)
– Hendy Irawan
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Timeout for python requests.get entire response
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325
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Overlaying histograms with ggplot2 in R
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position = 'identity' isn't just a more readable answer, it gels more nicely with more complicated plots, such as mixed calls to aes() and aes_string().
– rensa
Apr 4 '16 at 3:41
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Use of var keyword in C#
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I still think var can make code more readable in some cases. If I have a Customer class with an Orders property, and I want to assign that to a variable, I will just do this:
var orders = cust.Orders;
I don't care if Customer.Orders is IEnumerable<Ord...
How can I represent an 'Enum' in Python?
...o been backported to 3.3, 3.2, 3.1, 2.7, 2.6, 2.5, and 2.4 on pypi.
For more advanced Enum techniques try the aenum library (2.7, 3.3+, same author as enum34. Code is not perfectly compatible between py2 and py3, e.g. you'll need __order__ in python 2).
To use enum34, do $ pip install enum34
To...
How can I determine if a variable is 'undefined' or 'null'?
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1131
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Remove all but numbers from NSString
...tring separator. Not as efficient as picking through characters, but much more compact in code.
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How to find unused images in an Xcode project?
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What is a 'semantic predicate' in ANTLR?
...ring consisting of at least
// one number, optionally followed by zero or more comma's and numbers
parse
: number (',' number)* EOF
;
// matches a number that is between 1 and 3 digits long
number
: Digit Digit Digit
| Digit Digit
| Digit
;
// matches a single digit
Digit
: '0'...
Best way to merge two maps and sum the values of same key?
...ator, so you get the sum of values for each duplicate key.
Edit: A little more detail, as per user482745's request.
Mathematically a semigroup is just a set of values, together with an operator that takes two values from that set, and produces another value from that set. So integers under additi...