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Python assigning multiple variables to same value? list behavior
...t element of a to 1, the first elements of b and c are 1.
If you want to know if two names are naming the same object, use the is operator:
>>> a=b=c=[0,3,5]
>>> a is b
True
You then ask:
what is different from this?
d=e=f=3
e=4
print('f:',f)
print('e:',e)
Here, you'r...
Can I have onScrollListener for a ScrollView?
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Every instance of View calls getViewTreeObserver(). Now when holding an instance of ViewTreeObserver, you can add an OnScrollChangedListener() to it using the method addOnScrollChangedListener().
You can see more information about this class here.
It lets you be aware of eve...
ExpressJS How to structure an application?
... be distracted by third party matches
Use simple and obvious naming
npm now seems to require all-lowercase package names. I find this mostly terrible but I must follow the herd, thus filenames should use kebab-case even though the variable name for that in JavaScript must be camelCase because - i...
How do I pass extra arguments to a Python decorator?
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Now if you want to call a function function1 with a decorator decorator_with_arg and in this case both the function and the decorator take arguments,
def function1(a, b):
print (a, b)
decorator_with_arg(10)(function1)(...
Delete all documents from index/type without deleting type
I know one can delete all documents from a certain type via deleteByQuery.
15 Answers
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How to downgrade or install an older version of Cocoapods
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Update... if you call gem uninstall cocoapods it will now ask you which version you want to uninstall. Much quicker! :o)
– ingh.am
Sep 30 '15 at 13:58
1
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Why is there “data” and “newtype” in Haskell? [duplicate]
... to implement multiple instances of a class for that same underlying type. Now compiler won't complain if you attempt to define instances of say Ord Feet and Ord Cm. Whereas you can't have two definitions as Ord Double.
– Niket Kumar
May 29 '14 at 12:08
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'id' is a bad variable name in Python
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PEP 8, which was updated 01-Aug-2013, now advises avoiding potential confusion by simply appending _ to the variable name. Please see my answer.
– DavidRR
Jan 22 '15 at 14:28
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How can I copy the output of a command directly into my clipboard?
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I know the comment is 5 years old, but in case someone stumbles on to this in the future, to use with command output, do git merge-base master some-branch | pbcopy
– Sam
Dec 31 '19 at 17:33...
How to make a valid Windows filename from an arbitrary string?
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".foo" is a valid filename. Didn't know about the "CON" filename - what is it for?
– configurator
Mar 6 '09 at 23:56
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