大约有 47,000 项符合查询结果（耗时：0.0681秒） [XML]
Create a tag in a GitHub repository
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1590
You can create tags for GitHub by either using:
the Git command line, or
GitHub's web interfac...
How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method
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edited Nov 3 '16 at 20:41
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
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Why does Math.Floor(Double) return a value of type Double?
...Floor function but it's returning a double value, for ex: It's returning 4.0 from 4.6. The MSDN documentation says that it returns an integer value. Am I missing something here? Or is there a different way to achieve what I'm looking for?
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How to make a promise from setTimeout
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Update (2017)
Here in 2017, Promises are built into JavaScript, they were added by the ES2015 spec (polyfills are available for outdated environments like IE8-IE11). The syntax they went with uses a callback you pass into the Promise...
SSL Connection / Connection Reset with IISExpress
I'm using the new Visual Studio 2013 with IISExpress for the first time (previously used ASP.net Development server on VS2010). I'm running into issues trying to debug my project.
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Cleanest and most Pythonic way to get tomorrow's date?
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edited Oct 1 '09 at 22:52
Esteban Küber
33k1313 gold badges7676 silver badges9696 bronze badges
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Reduce left and right margins in matplotlib plot
...E.g.
import matplotlib.pyplot as plt
import numpy as np
data = np.arange(3000).reshape((100,30))
plt.imshow(data)
plt.savefig('test.png', bbox_inches='tight')
Another way is to use fig.tight_layout()
import matplotlib.pyplot as plt
import numpy as np
xs = np.linspace(0, 1, 20); ys = np.sin(xs)
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How can I format a decimal to always show 2 decimal places?
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108
I suppose you're probably using the Decimal() objects from the decimal module? (If you need exa...
How does Duff's device work?
...re's the Wikipedia example with some notations.
Let's say you're copying 20 bytes. The flow control of the program for the first pass is:
int count; // Set to 20
{
int n = (count + 7) / 8; // n is now 3. (The "while" is going
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What is the most efficient way to create a dictionary of two pandas Dataframe columns?
...Speed comparion (using Wouter's method)
In [6]: df = pd.DataFrame(randint(0,10,10000).reshape(5000,2),columns=list('AB'))
In [7]: %timeit dict(zip(df.A,df.B))
1000 loops, best of 3: 1.27 ms per loop
In [8]: %timeit pd.Series(df.A.values,index=df.B).to_dict()
1000 loops, best of 3: 987 us per loop...