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Max return value if empty query
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int maxShoeSize = Workers.Where(x => x.CompanyId == 8)
.Select(x => x.ShoeSize)
.DefaultIfEmpty(0)
.Max();
The zero in DefaultIfEmpty is not necessa...
How do you rotate a two dimensional array?
Inspired by Raymond Chen's post , say you have a 4x4 two dimensional array, write a function that rotates it 90 degrees. Raymond links to a solution in pseudo code, but I'd like to see some real world stuff.
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图表组件 · App Inventor 2 中文网
...饼图不适用）。
高度
设置图表的垂直高度，以像素px为单位。
高度百分比
设置图表的垂直高度相对于整个屏幕高度的百分比。
标签列表
将图表的 x 轴标签更改为指定的列表，如果图表类型设置为带轴图表。
列表...
What's the best way to bundle static resources in a Go program? [closed]
...hey need to go. However, I'd also like to be able to simply distribute an executable with as few files/dependencies as possible. Is there a good way to bundle the HTML/CSS/JS with the executable, so users only have to download and worry about one file?
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Which is faster in Python: x**.5 or math.sqrt(x)?
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math.sqrt(x) is significantly faster than x**0.5.
import math
N = 1000000
%%timeit
for i in range(N):
z=i**.5
10 loops, best of 3: 156 ms per loop
%%timeit
for i in range(N):
z=math.sqrt(i)
10 loops, best of 3: 9...
Short description of the scoping rules?
What exactly are the Python scoping rules?
9 Answers
9
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Incrementing in C++ - When to use x++ or ++x?
...e learned about the incrementation a while ago.
I know that you can use "++x" to make the incrementation before and "x++" to do it after.
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What integer hash function are good that accepts an integer hash key?
...uld pick a multiplier that is in the order of your hash size (2^32 in the example) and has no common factors with it. This way the hash function covers all your hash space uniformly.
Edit: The biggest disadvantage of this hash function is that it preserves divisibility, so if your integers are all ...
List comprehension rebinds names even after scope of comprehension. Is this right?
Comprehensions are having some unexpected interactions with scoping. Is this the expected behavior?
6 Answers
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Remove all occurrences of a value from a list?
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Functional approach:
Python 3.x
>>> x = [1,2,3,2,2,2,3,4]
>>> list(filter((2).__ne__, x))
[1, 3, 3, 4]
or
>>> x = [1,2,3,2,2,2,3,4]
>>> list(filter(lambda a: a != 2, x))
[1, 3, 3, 4]
Python 2.x
>>> x = ...