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Understanding Python super() with __init__() methods [duplicate]
...s on super if you haven't already.
Note that the syntax changed in Python 3.0: you can just say super().__init__() instead of super(ChildB, self).__init__() which IMO is quite a bit nicer. The standard docs also refer to a guide to using super() which is quite explanatory.
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Abort makefile if variable not set
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This doesn't seem to be working in make 3.81. It always errors, even if the variable is defined (and can be echoed).
– OrangeDog
Jun 14 '16 at 10:10
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Underscore: sortBy() based on multiple attributes
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answered Aug 15 '13 at 22:17
Rory MacLeodRory MacLeod
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Passing parameters in rails redirect_to
...them to the options:
redirect_to controller: 'thing', action: 'edit', id: 3, something: 'else'
Would yield /thing/3/edit?something=else
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Finding a substring within a list in Python [duplicate]
Example list: mylist = ['abc123', 'def456', 'ghi789']
5 Answers
5
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In Swift how to call method with parameters on GCD main thread?
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codestercodester
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How to start an application without waiting in a batch file?
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I'm making a guess here, but your start invocation probably looks like this:
start "\Foo\Bar\...
how to write setTimeout with params by Coffeescript
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answered Jun 23 '11 at 20:22
Trevor BurnhamTrevor Burnham
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How to find keys of a hash?
...bject.keys performing this operation:
var obj = { "a" : 1, "b" : 2, "c" : 3};
alert(Object.keys(obj)); // will output ["a", "b", "c"]
Compatibility details can be found here.
On the Mozilla site there is also a snippet for backward compatibility:
if(!Object.keys) Object.keys = function(o){
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Why do Python's math.ceil() and math.floor() operations return floats instead of integers?
...integers.
Consider: If floor() returned an integer, what should floor(1.0e30) return?
Now, while Python's integers are now arbitrary precision, it wasn't always this way. The standard library functions are thin wrappers around the equivalent C library functions.
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