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How do I uniquely identify computers visiting my web site?
...rg. We observe that the distribution of our finger-
print contains at least 18.1 bits of entropy, meaning that if we pick a
browser at random, at best we expect that only one in 286,777 other
browsers will share its fingerprint. Among browsers that support Flash
or J...
How to obtain a Thread id in Python?
...
Also note that at least in Python 2.5 and 2.6 on OS X, there seems to be a bug where threading.current_thread().ident is inappropriately None. Probably makes sense just to use thread.get_ident() in Python 2 and threading.current_thread().ident...
Check if PHP session has already started
...and you can open it again by calling session_start(). My understanding, at least.
– Stefan
Dec 15 '16 at 12:00
1
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ORDER BY the IN value list
... @aaandre The following casting is working fine (in Postgres 12 at least) array_position(array[42, 48, 43]::bigint[], c.id::bigint), so no need to truncate bigint to int.
– Vic
May 1 at 10:44
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How to open a new tab using Selenium WebDriver?
...e it depends on OS-specific (and perhaps browser-specific) shortcuts... At least, if you use something like JS window.open(), you can expect it to work on many platforms/browsers.
– mkasberg
May 30 '18 at 21:45
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How to use LINQ to select object with minimum or maximum property value
...e.MaxValue in order to rule them out of the Min consideration (assuming at least one has a specified DOB).
It can be achieved with a pre-filtering
people.Where(p => p.DateOfBirth.HasValue)
So it's immaterial to the question of implementing ArgMin or ArgMax.
NOTE 2
The above approach has a cavea...
How does Java Garbage Collection work with Circular References?
...onably current) JVM that uses reference counting, so it seems unlikely (at least to me) that it makes much difference to the original question.
– Jerry Coffin
Dec 15 '09 at 23:28
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Good PHP ORM Library?
... Very nice find. I'm very impressed with this ORM to say the least
– Christopher Tarquini
May 18 '10 at 8:15
6
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How to get min/max of two integers in Postgres/SQL?
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Have a look at GREATEST and LEAST.
UPDATE my_table
SET my_column = GREATEST(my_column - 10, 0);
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How to get cumulative sum
...ed by the query planner to quickly weigh-up different plans and choose the least costly, but those costs are for comparing plans for the same query, and are not relevant or comparable between queries, not at all. This sample dataset is also too tiny to see any significant difference between the thre...