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Using Core Data, iCloud and CloudKit for syncing and backup and how it works together
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typecast string to integer - Postgres
... having an error because of NULL, or special characters or empty string is by doing this:
SELECT REGEXP_REPLACE(COALESCE(<column>::character varying, '0'), '[^0-9]*' ,'0')::integer FROM table
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Mocking Extension Methods with Moq
... and pass your mocked method.
See Mocking Static Methods for Unit Testing by Paul Irwin, it has nice examples.
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How do I put double quotes in a string in vba?
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Find unmerged Git branches?
...alent to git branch --merged foo).
You can also compare upstream branches by specifying the -r flag and a ref to check against, which can be local or remote:
git branch -r --no-merged origin/master
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Find the number of columns in a table
...dited Sep 27 '17 at 7:28
Dmitry Bychenko
142k1616 gold badges129129 silver badges172172 bronze badges
answered Mar 18 '09 at 14:12
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What's the difference between echo, print, and print_r in PHP?
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echo
Outputs one or more strings separated by commas
No return value
e.g. echo "String 1", "String 2"
print
Outputs only a single string
Returns 1, so it can be used in an expression
e.g. print "Hello"
or, if ($expr && print "foo")
print_r()
Outputs...
How to find all the subclasses of a class given its name?
...ist of subclasses, since python 3.6 you can modify this attribute creation by overriding the __init_subclass__ method.
class PluginBase:
subclasses = []
def __init_subclass__(cls, **kwargs):
super().__init_subclass__(**kwargs)
cls.subclasses.append(cls)
class Plugin1(Plugin...
How do I add a path to PYTHONPATH in virtualenv
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You can usually avoid having to do anything with PYTHONPATH by using .pth files. Just put a file with a .pth extension (any basename works) in your virtualenv's site-packages folder, e.g. lib\python2.7\site-packages, with the absolute path to the directory containing your package as i...
PHP cURL vs file_get_contents
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