大约有 20,000 项符合查询结果(耗时:0.0328秒) [XML]

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Greedy vs. Reluctant vs. Possessive Quantifiers

..."foo" The initial nothing is consumed by .?*, which will consume the shortest possible amount of anything that allows the rest of the regex to match. doesn't appear at the beginning of the string, it's forced to swallow (who swallows?) the Again the .?* consumes the first character, after ...
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What's the difference between using “let” and “var”?

...also be avoided now by using let instead var as shown in the code below. (Tested in Chrome and Firefox 50) for(let i=1; i<6; i++) { $("#div" + i).click(function () { console.log(i); }); } <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script&...
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Why aren't variable-length arrays part of the C++ standard?

... @Jeff: What was the maximum value of n in your test case, and what was the size of your stack? I suggest you try inputting a value for n at least as large as the size of your stack. (And if there's no way for the user to control the value of n in your program, then I sugg...
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What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?

...is empty, it is intended to be set by the project." cmake.org/cmake/help/latest/variable/CMAKE_MODULE_PATH.html – Farway Jun 27 '19 at 9:29 ...
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Using HTML5/Canvas/JavaScript to take in-browser screenshots

...e good for going to different sites, comparing a shot of the site from the testing tool to your html2canvas.js rendered image in terms of pixel similarity! Wonder if you could automatically traverse parts of the DOM with a very simple formula solver to find how to parse alternate data sources for br...
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V

... Nice one! Tested and it works for n=3000, so it's probably right. (Pity I'm out of votes today :/) – moinudin Jan 5 '11 at 21:21 ...
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Proper practice for subclassing UIView?

...w runs the animation, it does not call layoutSubviews each time." Haven't tested it personally though – pfrank Sep 28 '13 at 22:38  |  show 4...
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How do I create a custom iOS view class and instantiate multiple copies of it (in IB)?

...e your views as a whole from your existing interface to the .xib file. To test this out I created a new empty .xib named "MyCustomTimerView.xib". Then I added a view, and to that added a label and two buttons. Like So: I created a new objective-C class subclassing UIView named "MyCustomTimer". I...
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Better explanation of when to use Imports/Depends

...uestions, I don't know the answer offhand, but you could hack up a minimal test package pretty easily and find the answer empirically ... – Ben Bolker Dec 26 '11 at 19:24 1 ...
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What column type/length should I use for storing a Bcrypt hashed password in a Database?

...d every other column of low hanging fruit, and you're about to mess with a tested cryptographic security system that works, and replace it with a more complicated home-grown system with a chance of implementation failure. – Kzqai Oct 5 '16 at 18:49 ...