大约有 40,000 项符合查询结果(耗时:0.0583秒) [XML]

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What should my Objective-C singleton look like? [closed]

My singleton accessor method is usually some variant of: 26 Answers 26 ...
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Detecting Unsaved Changes

...reunload methods as required. From the comments, the following references all input fields, without duplicating code: $(':input').change(function () { Using $(":input") refers to all input, textarea, select, and button elements. ...
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Does Javascript pass by reference? [duplicate]

...m very confused about my parameter for the rectangle function. It is actually undefined , and redefined inside the function. There are no original reference. If I remove it from the function parameter, the inside area function is not able to access it. ...
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What’s the best way to check if a file exists in C++? (cross platform)

...his using standard c++ libs? Preferably without trying to open the file at all. 10 Answers ...
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Can I find events bound on an element with jQuery?

...ng, sorry :) $._data(element[0], ‘events’); – totallyNotLizards Oct 23 '12 at 8:10 17 ...
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Play a Sound with Python [duplicate]

... Avoid oss, it's old. I don't think I even have it installed anymore. – Jeffrey Aylesworth Jan 30 '10 at 19:47 8 ...
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Checking if a double (or float) is NaN in C++

...nly if f is NaN. Note that, as some comments below have pointed out, not all compilers respect this when optimizing code. For any compiler which claims to use IEEE floating point, this trick should work. But I can't guarantee that it will work in practice. Check with your compiler, if in doubt. ...
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Qt: can't find -lGL error

I just reinstalled QtCreator, created new project ( Qt Application ) an got this after compilation: 8 Answers ...
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Detect Browser Language in PHP

... do you say they are one letter? Dutch (nl), Greek (el) and Slovenian (sl) all appear to be two letter: msdn.microsoft.com/en-us/library/ms533052(v=vs.85).aspx – Peter K. Nov 19 '12 at 17:35 ...
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Python list of dictionaries search

... Is worth noting that this answer returns a list with all matches for 'Pam' in people, alternatively we could get a list of all the people that are not 'Pam' by changing the comparison operator to !=. +1 – Onema Nov 12 '15 at 22:25 ...