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A weighted version of random.choice
..., this is an order of magnitude slower than random.choices for individual calls. If you need a lot of random results, it's really important to pick them all at once by adjusting number_of_items_to_pick. If you do so, it's an order of magnitude faster.
– jpmc26
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How much is too much with C++11 auto keyword?
...it` has an iterator type
// (don't really care which one in this context)
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Find index of last occurrence of a substring in a string
...variable name that people should avoid in python is abc; there's a module called abc in the native API.
– progyammer
May 28 '19 at 10:31
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Disable browser's back button
... not obliged to do AFAIK) they still provide a way to reload that page (usually after showing a warning dialog). So if you really don't want your users going back to that page, this may be worse, since the request for that page will HAVE to make its way all the way to the origin server. You will n...
Filtering collections in C#
... ints that are > than 7, Where returns an
// IEnumerable<T> so a call to ToList is required to convert back to a List<T>.
List<int> filteredList = myList.Where( x => x > 7).ToList();
If you can't find the .Where, that means you need to import using System.Linq; at the to...
Mod in Java produces negative numbers [duplicate]
....floorMod(-1, 2); //== 1
Note: If the modulo-value (here 2) is negative, all output values will be negative too. :)
Source: https://stackoverflow.com/a/25830153/2311557
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Why “no projects found to import”?
...ject into workspace". As the "root directory" I select the directory where all my .java (and .class) files are located. Eclipse writes me that "no projects are found to import". Why?
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Fetch the row which has the Max value for a column
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This will retrieve all rows for which the my_date column value is equal to the maximum value of my_date for that userid. This may retrieve multiple rows for the userid where the maximum date is on multiple rows.
select userid,
my_date,
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What happens to git commits created in a detached HEAD state?
...-pick [SHA] to move the commit onto an existing branch in case you accidentally committed while in detached head state
– Jan Aagaard Meier
Aug 20 '14 at 12:56
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PHP Composer update “cannot allocate memory” error (using Laravel 4)
... you should be committing your composer.lock file and doing a composer install on a production environment which is less resource intensive.
More details here:
https://github.com/composer/composer/issues/1898#issuecomment-23453850
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