大约有 47,000 项符合查询结果(耗时:0.0654秒) [XML]

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How to toggle a value in Python

What is the most efficient way to toggle between 0 and 1 ? 17 Answers 17 ...
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What is the difference between “px”, “dip”, “dp” and “sp”?

What is the difference between Android units of measure? 33 Answers 33 ...
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All falsey values in JavaScript

...ing that they evaluate as false in expressions like if(value) , value ? and !value ? 4 Answers ...
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Extract elements of list at odd positions

... Solution Yes, you can: l = L[1::2] And this is all. The result will contain the elements placed on the following positions (0-based, so first element is at position 0, second at 1 etc.): 1, 3, 5 so the result (actual numbers) will be: 2, 4, 6 Explanation...
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Fast way of finding lines in one file that are not in another?

...ile1 file2 The input files should be sorted for this to work. With bash (and zsh) you can sort in-place with process substitution <( ): diff --new-line-format="" --unchanged-line-format="" <(sort file1) <(sort file2) In the above new and unchanged lines are suppressed, so only changed...
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What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)

Let's make a list of answers where you post your excellent and favorite extension methods . 150 Answers ...
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What is the meaning and difference between subject, user and principal?

...ntext of security frameworks, a few terms commonly occur subject , user and principal , of which I have not been able to find a clear definition and the difference between them. ...
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Get all unique values in a JavaScript array (remove duplicates)

...ed to make sure are unique. I found the code snippet below on the internet and it works great until the array has a zero in it. I found this other script here on Stack Overflow that looks almost exactly like it, but it doesn't fail. ...
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Javascript Drag and drop for touch devices [closed]

... You can use the Jquery UI for drag and drop with an additional library that translates mouse events into touch which is what you need, the library I recommend is https://github.com/furf/jquery-ui-touch-punch, with this your drag and drop from Jquery UI should ...
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How to get item's position in a list?

I am iterating over a list and I want to print out the index of the item if it meets a certain condition. How would I do this? ...