大约有 32,293 项符合查询结果(耗时:0.0483秒) [XML]
Python time measure function
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exactly what i want :) ... but you guys convinced me to use the python profiler
– Wazery
Mar 29 '11 at 20:31
3
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In C#, what happens when you call an extension method on a null object?
...body a way for it to tell you if its dead or not and that in my opinion is what an Extension is for.
– Zorkind
Jun 22 '18 at 15:30
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show 4 ...
What does ON [PRIMARY] mean?
...ce in the script - One for the table and another for the table constraint. What does it signify in case of the table constraint in terms of storage? It sounds irrelevant or redundant to me. Syntactically, it should have been sufficient to mention it once at the table level or is it really possible t...
What do helper and helper_method do?
... to the views provided by the controller (and it's inherited controllers). What this means is doing
# application_controller.rb
helper :all
For Rails > 3.1
# application.rb
config.action_controller.include_all_helpers = true
# This is the default anyway, but worth knowing how to turn it off
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How to “properly” create a custom object in JavaScript?
I wonder about what the best way is to create an JavaScript object that has properties and methods.
15 Answers
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What does “async: false” do in jQuery.ajax()?
...ntal effects to the end user’s experience. For more help http://xhr.spec.whatwg.org/ 1 jquery.js:9061:4
– Aba
Jan 31 '17 at 23:19
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Casting a variable using a Type variable
...believe the conversion you are doing is not possible without IConvertible. What are the types involved in your conversion?
– maulik13
Jun 9 '16 at 15:28
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Why does comparing strings using either '==' or 'is' sometimes produce a different result?
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is is identity testing, == is equality testing. what happens in your code would be emulated in the interpreter like this:
>>> a = 'pub'
>>> b = ''.join(['p', 'u', 'b'])
>>> a == b
True
>>> a is b
False
so, no wonder they're not the sa...
Environment variable substitution in sed
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but, then what character can i use i know for sure will not appear in a path name ?
– RomanM
Feb 25 '09 at 6:42
5
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Command to get nth line of STDOUT
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What does the p mean? like 2p 3p? In the sense I understand that it's for 2/3 line, but what's the theory/understanding behind it?
– Leo Ufimtsev
Dec 6 '17 at 22:18
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