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Understanding offsetWidth, clientWidth, scrollWidth and -Height, respectively

...dth/offsetHeight. Then, to prove the theory right or wrong, you need some tests. That's what I did here: https://github.com/lingtalfi/dimensions-cheatsheet It's testing for chrome53, ff49, safari9, edge13 and ie11. The results of the tests prove that the theory is generally right. For the tests, ...
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How to find first element of array matching a boolean condition in JavaScript?

...hat index) it was met. So we have to amend it a little: function find(arr, test, ctx) { var result = null; arr.some(function(el, i) { return test.call(ctx, el, i, arr) ? ((result = el), true) : false; }); return result; } var result = find(someArray, isNotNullNorUndefined);...
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C# - How to get Program Files (x86) on Windows 64 bit

... Why this test : 8 == IntPtr.Size ? – Florian Oct 7 '11 at 11:30 1 ...
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Python read-only property

...y ... def a(self): ... return self._a ... >>> a = A('test') >>> a.a 'test' >>> a.a = 'pleh' Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: can't set attribute ...
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C++STL容器使用经验总结 - C/C++ - 清泛网 - 专注C/C++及内核技术

... 第17条:使用“swap技巧”出去多余的容量。 vector<Contestant>(contestants).swap(contestants); 表达式vector<Contestant>(contestants)创建一个临时的矢量,它是contestants的拷贝:这是由 vector的拷贝构造函数来完成的。然而,vector的拷贝构造函...
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Why does `a == b or c or d` always evaluate to True?

...= "Inbar": Compose a sequence of valid values, and use the in operator to test for membership: if name in {"Kevin", "Jon", "Inbar"}: In general of the two the second should be preferred as it's easier to read and also faster: &gt;&gt;&gt; import timeit &gt;&gt;&gt; timeit.timeit('name == "Kevin" ...
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How to check if a file is a valid image file?

... That won't be sufficient if he's really testing for "valid" images; the presence of a magic number doesn't guarantee that the file hasn't been truncated, for example. – Ben Blank May 20 '09 at 18:11 ...
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How do I step out of a loop with Ruby Pry?

... use when you're using guard and just want it to stop running pry for that test run. It'll reset on the next test run. – BBonifield Aug 26 '15 at 19:33 add a comment ...
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What does jQuery.fn mean?

...rom the constructor's prototype. A simple constructor function: function Test() { this.a = 'a'; } Test.prototype.b = 'b'; var test = new Test(); test.a; // "a", own property test.b; // "b", inherited property A simple structure that resembles the architecture of jQuery: (function() { var ...
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What is a good regular expression to match a URL? [duplicate]

... For got to mention use this site gskinner.com/RegExr to test Regex and view common samples – Daveo Sep 28 '10 at 3:16 8 ...