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Suppress warning CS1998: This async method lacks 'await'
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107
I've got an interface with some async functions.
Methods returning Task, I believe. async ...
How to host a Node.Js application in shared hosting [closed]
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160
You can run node.js server on a typical shared hosting with Linux, Apache and PHP (LAMP). I hav...
Empty arrays seem to equal true and false at the same time
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d_ethier
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answered Mar 30 '11 at 20:10
wildcardwildcard
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How to nicely format floating numbers to String without unnecessary decimal 0?
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407
If the idea is to print integers stored as doubles as if they are integers, and otherwise print...
What's the simplest way to test whether a number is a power of 2 in C++?
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190
(n & (n - 1)) == 0 is best. However, note that it will incorrectly return true for n=0, so i...
How to check with javascript if connection is local host?
...e in.
if (location.hostname === "localhost" || location.hostname === "127.0.0.1")
alert("It's a local server!");
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A weighted version of random.choice
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Since version 1.7.0, NumPy has a choice function that supports probability distributions.
from numpy.random import choice
draw = choice(list_of_candidates, number_of_items_to_pick,
p=probability_distribution)
Note that probabi...
pandas: filter rows of DataFrame with operator chaining
... boolean index.
In [96]: df
Out[96]:
A B C D
a 1 4 9 1
b 4 5 0 2
c 5 5 1 0
d 1 3 9 6
In [99]: df[(df.A == 1) & (df.D == 6)]
Out[99]:
A B C D
d 1 3 9 6
If you want to chain methods, you can add your own mask method and use that one.
In [90]: def mask(df, key, ...
ATL正则表达式库使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...这样构造我们的CAtlRegExp类：
CAtlRegExp <> re;
re.Parse( "{[0-9]?[0-9]}:{[0-9][0-9]}" );
ATL的正则表达式语法和Perl的正则表达式语法大同小异，不过有一个值得注意的地方就 是ATL中用大括号（{ }）表示其匹配字符串中的Group，我们上...
Are Javascript arrays sparse?
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How exactly JavaScript arrays are implemented differs from browser to browser, but they generall...