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Redefining NULL
...casting a 0 constant to a pointer value must result in a NULL pointer (§6.3.2.3/3), and evaluating the null pointer as a boolean must be false. This can be a bit awkward if you really do want a zero address, and NULL is not the zero address.
Nevertheless, with (heavy) modifications to the compiler...
Are custom elements valid HTML5?
...ate and provide script interfaces.
Custom elements is a part of a larger W3 specification called Web Components, along with Templates, HTML Imports, and Shadow DOM.
Web Components enable Web application authors to define widgets with a
level of visual richness and interactivity not possible with C...
Print commit message of a given commit in git
...
347
It's not "plumbing", but it'll do exactly what you want:
$ git log --format=%B -n 1 <commi...
Non-static method requires a target
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503
I think this confusing exception occurs when you use a variable in a lambda which is a null-refe...
How do you force a makefile to rebuild a target
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23
You could declare one or more of your targets to be phony.
A phony target is one that is not...
linux tee is not working with python?
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VorVor
25.6k3737 gold badges112112 silver badges176176 bronze badges
...
python pandas: Remove duplicates by columns A, keeping the row with the highest value in column B
...]: df.drop_duplicates(subset='A', keep="last")
Out[10]:
A B
1 1 20
3 2 40
4 3 10
You can do also something like:
In [12]: df.groupby('A', group_keys=False).apply(lambda x: x.loc[x.B.idxmax()])
Out[12]:
A B
A
1 1 20
2 2 40
3 3 10
...
How can I recover a lost commit in Git?
First, got "your branch is ahead of origin/master by 3 commits" then my app has reverted to an earlier time with earlier changes.
...
cancelling queued performSelector:afterDelay calls
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Tim
14.1k66 gold badges3737 silver badges6262 bronze badges
answered Nov 27 '09 at 2:40
stefanBstefanB
...
Convert a list to a dictionary in Python
....
from itertools import izip
i = iter(a)
b = dict(izip(i, i))
In Python 3 you could also use a dict comprehension, but ironically I think the simplest way to do it will be with range() and len(), which would normally be a code smell.
b = {a[i]: a[i+1] for i in range(0, len(a), 2)}
So the iter(...