大约有 42,000 项符合查询结果（耗时：0.0625秒） [XML]
Where should Rails 3 custom validators be stored?
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answered Jul 7 '11 at 12:03
gbcgbc
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Java: Class.this
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Rarblack
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answered Apr 3 '11 at 14:51
aioobeaioobe
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How do I call setattr() on the current module?
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223
import sys
thismodule = sys.modules[__name__]
setattr(thismodule, name, value)
or, without u...
What does “WARN Could not determine content-length of response body.” mean and how to I get rid of i
Since upgrading to Rails 3.1 I'm seeing this warning message in my development log:
9 Answers
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Check if a string contains another string
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390
Use the Instr function
Dim pos As Integer
pos = InStr("find the comma, in the string", ",")
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What's the difference between == and .equals in Scala?
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edited Sep 18 '13 at 12:45
Erik Kaplun
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What do all of Scala's symbolic operators mean?
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530
I divide the operators, for the purpose of teaching, into four categories:
Keywords/reserved ...
How do I return multiple values from a function? [closed]
...t; p.x, p.y
1 2
>>> p[0], p[1]
1 2
In recent versions of Python 3 (3.6+, I think), the new typing library got the NamedTuple class to make named tuples easier to create and more powerful. Inheriting from typing.NamedTuple lets you use docstrings, default values, and type annotations.
Exa...
Accessing bash command line args $@ vs $*
...oted. Let me illustrate the differences:
$ set -- "arg 1" "arg 2" "arg 3"
$ for word in $*; do echo "$word"; done
arg
1
arg
2
arg
3
$ for word in $@; do echo "$word"; done
arg
1
arg
2
arg
3
$ for word in "$*"; do echo "$word"; done
arg 1 arg 2 arg 3
$ for word in "$@"; do echo "$word"; do...
Select top 10 records for each category
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answered Oct 7 '08 at 2:13
Darrel MillerDarrel Miller
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