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Correct format specifier for double in printf

...assuming a current version of g++), that's a bug in g++. For C89/90 and C++98/03, allowing l was an extension. The C99/11 and C++11 standards require the implementation to allow it. – Jerry Coffin Jun 10 '13 at 13:16 ...
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How to get distinct values from an array of objects in JavaScript?

... @98percentmonkey - The object was used to facilitate the "dictionary approach". Inside the object, each occurrence being tracked is added as a key (or a bin). This way, when we come across an occurrence, we can check to see if...
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Validate that a string is a positive integer

...ue); }, false ); test("1", true); test("1.23", false); test("1234567890123", true); test("1234567890123.1", false); test("0123", false); // false because we don't handle leading 0s test(" 123 ", false); // false because we don't handle whitespace <label> String: <inp...
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Can I write a CSS selector selecting elements NOT having a certain class or attribute?

... Is this supported? Yes : Caniuse.com (accessed 02 Jan 2020): Support: 98.74% Partial support: 0.1% Total:98.84% Funny edit, I was Googling for the opposite of :not. CSS negation? selector[class] /* the oposite of :not[]*/ ...
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SQL order string as number

... | 0 /* the string does not contain a number, so the result is 0 */ '123miles' | 123 '$123' | 0 /* the left side of the string does not start with a number */ share | improve t...
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what is faster: in_array or isset? [closed]

...e, you can check out the compiled version of your script: echo isset($arr[123]) compiled vars: !0 = $arr line # * op fetch ext return operands ----------------------------------------------------------------------------- 1 0 > ZEND_ISSET_ISEMPTY_...
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What is move semantics?

...ject. Exactly how is that going to be initialized? In the olden days of C++98, the answer would have been "by the copy constructor". In C++0x, the compiler chooses between the copy constructor and the move constructor based on whether the argument to the assignment operator is an lvalue or an rvalue...
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How to disable an Android button?

...dited Sep 1 '14 at 19:00 hichris123 9,5151212 gold badges5050 silver badges6666 bronze badges answered Dec 8 '10 at 7:08 ...
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Collisions when generating UUIDs in JavaScript?

... Mark Amery 98.9k4848 gold badges336336 silver badges379379 bronze badges answered Aug 25 '11 at 4:49 broofabroof...
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Easy way to pull latest of all git submodules

...answered Dec 11 '14 at 19:38 abc123abc123 15.5k66 gold badges4444 silver badges7373 bronze badges ...