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Is volatile expensive?
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Django REST Framework: adding additional field to ModelSerializer
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class Meta:
model = Foo
fields = ('id', 'name', 'my_field')
http://www.django-rest-framework.org/api-guide/fields/#serializermethodfield
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Why does my application spend 24% of its life doing a null check?
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HTML entity for the middle dot
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MySQL error 1449: The user specified as a definer does not exist
...'someuser'@'%' IDENTIFIED BY 'complex-password';
FLUSH PRIVILEGES;
From http://www.lynnnayko.com/2010/07/mysql-user-specified-as-definer-root.html
This worked like a charm - you only have to change someuser to the name of the missing user. On a local dev server, you might typically just use root...
JetBrains / IntelliJ keyboard shortcut to collapse all methods
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Viewing full output of PS command
...ion twice for unlimited width.
I found the answer on the following blog:
http://www.snowfrog.net/2010/06/10/solaris-ps-output-truncated-at-80-columns/
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Can I use a hash sign (#) for commenting in PHP?
...PHP's documentation describes the different possibilities of comments. See http://www.php.net/manual/en/language.basic-syntax.comments.php
But it does not say anything about differences between "//" and "#". So there should not be a technical difference. PHP uses C syntax, so I think that is the re...
Hex transparency in colors [duplicate]
... table of percentages to hex values and run the code in this playground in https://play.golang.org/p/l1JaPYFzDkI .
Short explanation in pseudocode
Percentage to hex values
decimal = percentage * 255 / 100 . ex : decimal = 50*255/100 = 127.5
convert decimal to hexadecimal value . ex: 127.5 in d...
Actual meaning of 'shell=True' in subprocess
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