大约有 38,000 项符合查询结果（耗时：0.0405秒） [XML]
Does application.yml support environment variables?
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edited Apr 12 '14 at 9:26
answered Apr 12 '14 at 7:44
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Iterating a JavaScript object's properties using jQuery
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edited Jul 3 '19 at 12:14
ozba
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answer...
Create a devise user from Ruby console
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197
You can add false to the save method to skip the validations if you want.
User.new({:email =&g...
Can TCP and UDP sockets use the same port?
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edited Aug 8 '14 at 9:09
answered Jun 22 '11 at 9:05
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twitter bootstrap autocomplete dropdown / combobox with Knockoutjs
...trap-esque.
– Steven
Jul 11 '14 at 19:00
1
Due to the issue pointed out by @compcentral and Stas,...
How to remove all rows in a numpy.ndarray that contain non-numeric values
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>>> a = np.array([[1,2,3], [4,5,np.nan], [7,8,9]])
array([[ 1., 2., 3.],
[ 4., 5., nan],
[ 7., 8., 9.]])
>>> a[~np.isnan(a).any(axis=1)]
array([[ 1., 2., 3.],
[ 7., 8., 9.]])
and reassign this to a.
Explanation: np.isna...
How to get error message when ifstream open fails
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answered Jun 27 '13 at 9:02
Matthieu RougetMatthieu Rouget
2,8891515 silver badges2222 bronze badges
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Consistency of hashCode() on a Java string
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answered Apr 24 '09 at 9:25
Jon SkeetJon Skeet
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In C++, what is a “namespace alias”?
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189
A namespace alias is a convenient way of referring to a long namespace name by a different, shor...
How to get rid of the 'undeclared selector' warning
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edited Aug 21 '13 at 14:29
answered May 8 '12 at 23:50
Kla...