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JavaScript style for optional callbacks

...wder dodgy might be the wrong word, it's well defined but useless due to boxing and returning "object" 95% of the time. – Raynos Jul 22 '11 at 16:03 1 ...
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C++ template constructor

... There is no way to explicitly specify the template arguments when calling a constructor template, so they have to be deduced through argument deduction. This is because if you say: Foo<int> f = Foo<int>(); The <int> is the ...
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Linq order by boolean

...s - which LINQ provider are you actually using? Here's a LINQ to Objects example which does work: using System; using System.Linq; public static class Test { public static void Main() { var data = new[] { new { x = false, y = "hello" }, new { x = tr...
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What is the “assert” function?

...nly used during debugging to make the program fail more obviously if an unexpected condition occurs. For example: assert(length >= 0); // die if length is negative. You can also add a more informative message to be displayed if it fails like so: assert(length >= 0 && "Whoops, len...
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How to insert newline in string literal?

... Well, simple options are: string.Format: string x = string.Format("first line{0}second line", Environment.NewLine); String concatenation: string x = "first line" + Environment.NewLine + "second line"; String interpolation (in C#6 and above): string x = $"first line{Env...
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Hello World in Python [duplicate]

...rst Google result for Python Hello World. – MiffTheFox Jul 3 '09 at 0:29 1 "requires parenthesis"...
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Replace X-axis with own values

... Not sure if it's what you mean, but you can do this: plot(1:10, xaxt = "n", xlab='Some Letters') axis(1, at=1:10, labels=letters[1:10]) which then gives you the graph: share | improve...
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CURL Command Line URL Parameters

... "application/x-www-form-urlencoded" header, why? Try it out: curl -X DELETE 'http://localhost:5000/locations?id=3' or curl -X GET 'http://localhost:5000/locations?id=3' ...
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List all files in one directory PHP [duplicate]

...ath); $total = count($files); $images = array(); for($x = 0; $x <= $total; $x++): if ($files[$x] != '.' && $files[$x] != '..') { $images[] = $files[$x]; } endfor; – Patrick Mutwiri May 13 '1...
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What do {curly braces} around javascript variable name mean [duplicate]

EDIT After looking at JSHint I found this ' destructuring expression' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz) and this however after reading it I still don't understand why it is used ...