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Add a property to a JavaScript object using a variable as the name?
...
You can use this equivalent syntax:
obj[name] = value
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Skip first entry in for loop in python?
...uence.
For any iterable, to skip the first item:
itercars = iter(cars)
next(itercars)
for car in itercars:
# do work
If you want to skip the last, you could do:
itercars = iter(cars)
# add 'next(itercars)' here if you also want to skip the first
prev = next(itercars)
for car in itercars:
...
Is gettimeofday() guaranteed to be of microsecond resolution?
I am porting a game, that was originally written for the Win32 API, to Linux (well, porting the OS X port of the Win32 port to Linux).
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How to get the parents of a Python class?
...s__
From the docs:
The tuple of base classes of a class
object.
Example:
>>> str.__bases__
(<type 'basestring'>,)
Another example:
>>> class A(object):
... pass
...
>>> class B(object):
... pass
...
>>> class C(A, B):
... pass
...
>...
CABasicAnimation resets to initial value after animation completes
...e more in Prevent Layers From Snapping Back to Original Values When Using Explicit CAAnimations
– likid1412
Feb 4 '16 at 12:06
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What reason is there to use null instead of undefined in JavaScript?
...ou might sometimes get an object while undefined means that no object was expected (or that there was an error). My problem with that is its completely arbitrary, and totally unnecessary.
That said, there is one major difference - variables that aren't initialized (including function parameters wh...
Emacs in Windows
...les in the same Emacs window)
it includes several useful packages such as Nxml
it has a Windows installer or you can build it from sources
And concerning XEmacs, according to this post by Steve Yegge:
To summarize, I've argued that XEmacs has a much lower market share, poorer performance, more...
How to rename a single column in a data.frame?
...ch - This doesn't seem to work if the column name is something like "A,B,C,X,Y,Z" where I want to rename it to Y using testData[379] <- "Y".
– Chetan Arvind Patil
Jan 17 '19 at 16:10
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What is null in Java?
...s an instanceof.
15.20.2 Type Comparison Operator instanceof
RelationalExpression:
RelationalExpression instanceof ReferenceType
At run time, the result of the instanceof operator is true if the value of the RelationalExpression is not null and the reference could be cast to the Referen...
Is nested function a good approach when required by only one function? [closed]
...
>>> def sum(x, y):
... def do_it():
... return x + y
... return do_it
...
>>> a = sum(1, 3)
>>> a
<function do_it at 0xb772b304>
>>> a()
4
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