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What is this 'Lambda' everyone keeps speaking of?
... perform much more useful tasks. For example filter:
var numbers = [1, 2, 3, 4];
var even = [];
// keep all even numbers from above array
for (var i=0; i<numbers.length; i++) {
if (numbers[i] % 2 === 0) {
even.push(numbers[i]);
}
}
alert(even);
// Using the filter method
ev...
Can C++ code be valid in both C++03 and C++11 but do different things?
Is it possible for C++ code to conform to both the C++03 standard and the C++11 standard, but do different things depending on under which standard it is being compiled?
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Update multiple rows in same query using PostgreSQL
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453
+50
You can a...
Enum type constraints in C# [duplicate]
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93
This is an occasionally requested feature.
As I'm fond of pointing out, ALL features are unimp...
Generate MD5 hash string with T-SQL
Is there a way to generate MD5 Hash string of type varchar(32) without using fn_varbintohexstr
9 Answers
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How do I log errors and warnings into a file?
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366
Use the following code:
ini_set("log_errors", 1);
ini_set("error_log", "/tmp/php-error.log");...
What is the best way to concatenate two vectors?
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332
AB.reserve( A.size() + B.size() ); // preallocate memory
AB.insert( AB.end(), A.begin(), A.end...
Equivalent C++ to Python generator pattern
...rator_tag,
std::pair<unsigned, unsigned>
>
{
// C++03
typedef void (PairSequence::*BoolLike)();
void non_comparable();
public:
// C++11 (explicit aliases)
using iterator_category = std::input_iterator_tag;
using value_type = std::pair<unsigned, unsigned>;
usi...
How to implement a queue using two stacks?
... |
edited Dec 22 '16 at 2:36
rimsky
1,04322 gold badges1414 silver badges2424 bronze badges
answered Sep...
Is there a performance difference between i++ and ++i in C++?
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432
[Executive Summary: Use ++i if you don't have a specific reason to use i++.]
For C++, the answ...