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How is __eq__ handled in Python and in what order?
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base on this answer and accompanied comments , this just left me more confused than before.
– Sajuuk
May 14 '19 at 8:48
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How does LMAX's disruptor pattern work?
...cy.
Compared to SEDA
LMAX built the Disruptor pattern to replace a SEDA based approach.
The main improvement that it provided over SEDA was the ability to do work in parallel. To do this the Disruptor supports multi-casting the same messages (in the same order) to multiple consumers. This avoid...
live output from subprocess command
..., good explanation but it lacks the concrete code examples. Here's asyncio-based code that implements the "hard part" (it handles multiple pipes concurrently) in a portable way. You could compare it to the code that uses multiple threads (teed_call()) to do the same.
– jfs
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How should you build your database from source control?
There has been some discussion on the SO community wiki about whether database objects should be version controlled. However, I haven't seen much discussion about the best-practices for creating a build-automation process for database objects.
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Differences between Perl and PHP [closed]
...ve subscripts in PHP are subscripts like any other.
In Perl 5, classes are based on packages and look nothing like classes in PHP (or most other languages). Perl 6 classes are closer to PHP classes, but still quite different. (Perl 6 is different from Perl 5 in many other ways, but that's off topic....
How to implement has_many :through relationships with Mongoid and mongodb?
...nship have hunders|thousands of records) because it gets the data from database, build each record, generates the original array and then iterates over the original array to build a new one with the values from the given block.
Using pluck is faster and maybe the fastest option.
class Physician
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How to create a custom attribute in C#
...ld be interested in the attributes you use, read them, and perform actions based on them. A typical example is a validation library, as @BrunoBrant mentioned.
– romar
May 10 '13 at 18:26
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.NET Global exception handler in console application
...ame "game" he does, only in a worse way because it's pure retaliation, not based on the quality of an answer. That's not a way to solve the problem, only make it worse. It's especially bad when you retaliate against someone who even had a legitimate concern about your answer (as I have demonstrate...
What is the most efficient/elegant way to parse a flat table into a tree?
... MySQL 8.0 supports recursive queries, we can say that all popular SQL databases support recursive queries in standard syntax.
WITH RECURSIVE MyTree AS (
SELECT * FROM MyTable WHERE ParentId IS NULL
UNION ALL
SELECT m.* FROM MyTABLE AS m JOIN MyTree AS t ON m.ParentId = t.Id
)
SELECT * ...
Maximum single-sell profit
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#
# Let's consider the time and space complexity of this algorithm. Our base
# case takes O(1) time, and in our recursive step we make two recursive calls,
# one on each half of the array, and then does O(n) work to scan the array
# elements to find the minimum and maximum values. This gives the...