大约有 45,000 项符合查询结果(耗时:0.0612秒) [XML]

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Implications of foldr vs. foldl (or foldl')

...rstly, Real World Haskell , which I am reading, says to never use foldl and instead use foldl' . So I trust it. 7 Ans...
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What does CultureInfo.InvariantCulture mean?

... Not all cultures use the same format for dates and decimal / currency values. This will matter for you when you are converting input values (read) that are stored as strings to DateTime, float, double or decimal. It will also matter if you try to format the aforementio...
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How can I get jQuery to perform a synchronous, rather than asynchronous, Ajax request?

I have a JavaScript widget which provides standard extension points. One of them is the beforecreate function. It should return false to prevent an item from being created. ...
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Try catch statements in C

... in C. However, is there a way to "simulate" them? Sure, there is assert and other tricks but nothing like try/catch, that also catch the raised exception. Thank you ...
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Best practice for nested fragments in Android 4.0, 4.1 (

I'm writing an app for 4.0 and 4.1 tablets, for which I do not want to use the support libraries (if not needed) but the 4.x api only therefore. ...
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How do I set a background-color for the width of text, not the width of the entire element, using CS

...ne element, such as a <span>. <h1><span>The Last Will and Testament of Eric Jones</span></h1> And then apply the background color on the inline element. h1 { text-align: center; } h1 span { background-color: green; } An inline element is as big as its...
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Iterate over the lines of a string

... the main script confirms the three functions are equivalent. With timeit (and a * 100 for foo to get substantial strings for more precise measurement): $ python -mtimeit -s'import asp' 'list(asp.f3())' 1000 loops, best of 3: 370 usec per loop $ python -mtimeit -s'import asp' 'list(asp.f2())' 1000 ...
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How to do error logging in CodeIgniter (PHP)

...here any security implications for this? – Aakil Fernandes Aug 12 '14 at 1:51 This dumps data to a php file whose file...
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Font size in CSS - % or em?

...icle on web typography on A List Apart. Their conclusion: Sizing text and line-height in ems, with a percentage specified on the body (and an optional caveat for Safari 2), was shown to provide accurate, resizable text across all browsers in common use today. This is a technique you...
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Python argparse: Make at least one argument required

... Dang, I like that vars. I just did .__dict__ and felt dumb before. – Theo Belaire Feb 13 '14 at 18:27 1 ...