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Dump Mongo Collection into JSON format
Is there any way to dump mongo collection into json format? Either on the shell or using java driver.I am looking for the one with best performance.
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Difference between getContext() , getApplicationContext() , getBaseContext() and “this”
...y active Activity.
Activity.getApplicationContext(): Returns the context for the entire application (the process all the Activities are running inside
of). Use this instead of the current Activity context if you need a
context tied to the lifecycle of the entire application, not just the
current A...
What is the difference between a 'closure' and a 'lambda'?
...c(): return h
def anotherfunc(h):
return func()
This will cause an error, because func does not close over the environment in anotherfunc - h is undefined. func only closes over the global environment. This will work:
def anotherfunc(h):
def func(): return h
return func()
Because her...
Mod in Java produces negative numbers [duplicate]
... 1 as the result of -1 % 2 .
What do I have to do to get the same behavior in Java with the modulo function?
5 Answers
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Why does a return in `finally` override `try`?
How does a return statement inside a try/catch block work?
10 Answers
10
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Link to reload current page
Is it possible to have a normal link pointing to the current location?
21 Answers
21
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Standard way to embed version into python package?
...andard.
Usually, __version__ is a string, but sometimes it's also a float or tuple.
Edit: as mentioned by S.Lott (Thank you!), PEP 8 says it explicitly:
Module Level Dunder Names
Module level "dunders" (i.e. names with two leading and two trailing
underscores) such as __all__, __author_...
How to resolve “must be an instance of string, string given” prior to PHP 7?
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Prior to PHP 7 type hinting can only be used to force the types of objects and arrays. Scalar types are not type-hintable. In this case an object of the class string is expected, but you're giving it a (scalar) string. The error...
How do I check that multiple keys are in a dict in a single pass?
...
Well, you could do this:
>>> if all (k in foo for k in ("foo","bar")):
... print "They're there!"
...
They're there!
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Easiest way to check for an index or a key in an array?
...in Bash manual and the little note
if the colon is omitted, the operator tests only for existence [of parameter]
This answer is actually adapted from the answers for this SO question: How to tell if a string is not defined in a bash shell script?
A wrapper function:
exists(){
if [ "$2"...