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Does functional programming replace GoF design patterns?
...e above is a quote from the Introduction to the Design Patterns book, page 4, paragraph 3)
The main features of functional
programming include functions as
first-class values, currying,
immutable values, etc. It doesn't seem
obvious to me that OO design patterns
are approximating any o...
What is the correct XPath for choosing attributes that contain “foo”?
...
evilhomerevilhomer
7,29644 gold badges2121 silver badges2121 bronze badges
...
Fastest way to replace NAs in a large data.table
...m.time(a_gdata = f_gdata(dt1))
user system elapsed
18.805 12.301 134.985
system.time(a_andrie = f_andrie(dt1))
Error: cannot allocate vector of size 305.2 Mb
Timing stopped at: 14.541 7.764 68.285
system.time(f_dowle(dt1))
user system elapsed
7.452 4.144 19.590 # EDIT has fas...
Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
Excel RTD(Excel Real-Time Data)实时刷新数据技术从Excel 2002开始，微软提供了一种叫做Excel RTD（real-time data）的技术，使用该技术可以在Excel中实时查看和更新数据。RTD采用所谓的...从Excel 2002开始，微软提供了一种叫做Excel RTD（real-time d...
How to initialize static variables
...
348
PHP can't parse non-trivial expressions in initializers.
I prefer to work around this by addin...
EF Code First: How do I see 'EntityValidationErrors' property from the nuget package console?
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Troy Alford
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answered May 20 '12 at 19:32
RichardRichard
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How can foreign key constraints be temporarily disabled using T-SQL?
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1140
If you want to disable all constraints in the database just run this code:
-- disable all cons...
Difference between abstraction and encapsulation?
...lier:
Every function is an encapsulation; in pseudocode:
point x = { 1, 4 }
point y = { 23, 42 }
numeric d = distance(x, y)
Here, distance encapsulates the calculation of the (Euclidean) distance between two points in a plane: it hides implementation details. This is encapsulation, pure and si...
Counting inversions in an array
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141
So here is O(n log n) solution in java.
long merge(int[] arr, int[] left, int[] right) {
...
Chain-calling parent initialisers in python [duplicate]
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answered May 24 '09 at 16:12
dF.dF.
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