大约有 18,000 项符合查询结果(耗时:0.0261秒) [XML]

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How do I ignore the initial load when watching model changes in AngularJS?

...eep graph in the $scope.fieldcontainer property. After I get a response from my REST API (via $resource), I add a watch to 'fieldcontainer'. I am using this watch to detect if the page/entity is "dirty". Right now I'm making the save button bounce but really I want to make the save button invisible ...
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Finding Number of Cores in Java

How can I find the number of cores available to my applim>catm>ion from within Java code? 4 Answers ...
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What is the right way to override a setter method in Ruby on Rails?

I am using Ruby on Rails 3.2.2 and I would like to know if the following is a "proper"/"correct"/"sure" way to override a setter method for a my class attribute. ...
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How can I obtain the element-wise logical NOT of a pandas Series?

... False 1 False 2 True 3 False dtype: bool Using Python2.7, NumPy 1.8.0, Pandas 0.13.1: In [119]: s = pd.Series([True, True, False, True]*10000) In [10]: %timeit np.invert(s) 10000 loops, best of 3: 91.8 µs per loop In [11]: %timeit ~s 10000 loops, best of 3: 73.5 µs per loop In ...
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How to use > in an xargs command?

I want to find a bash command that will let me grep every file in a directory and write the output of that grep to a separate file. My guess would have been to do something like this ...
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Insert Unicode character into JavaScript

I need to insert an Omega (Ω) onto my html page. I am using its HTML escaped code to do that, so I can write Ω and get Ω. That's all fine and well when I put it into a HTML element; however, when I try to put it into my JS, e.g. var Omega = Ω , it parses that code as JS and th...
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How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly

I have a dataframe with ~300K rows and ~40 columns. I want to find out if any rows contain null values - and put these 'null'-rows into a separate dataframe so that I could explore them easily. ...
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How do I add files without dots in them (all extension-less files) to the gitignore file?

Like the title says, is it possible to add "files without dots in them" to the gitignore file? 3 Answers ...
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If vs. Switch Speed

Switch statements are typically faster than equivalent if-else-if statements (as e.g. descibed in this article ) due to compiler optimizations. ...
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How to expire session due to inactivity in Django?

Our Django applim>catm>ion has the following session management requirements. 6 Answers 6 ...