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What is tail recursion?

...ple function that adds the first N natural numbers. (e.g. sum(5) = 1 + 2 + 3 + 4 + 5 = 15). Here is a simple JavaScript implementation that uses recursion: function recsum(x) { if (x === 1) { return x; } else { return x + recsum(x - 1); } } If you called recsum(5), th...
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xUnit : Assert two List are equal?

... 143 xUnit.Net recognizes collections so you just need to do Assert.Equal(expected, actual); // Orde...
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What's the difference between a proc and a lambda in Ruby?

.... An example: p = Proc.new {|a, b| puts a**2+b**2 } # => #<Proc:0x3c7d28@(irb):1> p.call 1, 2 # => 5 p.call 1 # => NoMethodError: undefined method `**' for nil:NilClass p.call 1, 2, 3 # => 5 l = lambda {|a, b| puts a**2+b**2 } # => #<Proc:0x15016c@(irb):5 (lambda)> l.ca...
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How do I add options to a DropDownList using jQuery?

... Vikas 21.9k3333 gold badges107107 silver badges159159 bronze badges answered Nov 25 '08 at 11:52 nickfnickf ...
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Windows batch: sleep [duplicate]

... | edited Jul 24 '13 at 7:53 Peter Mortensen 26.5k2121 gold badges9292 silver badges122122 bronze badges ...
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Select every Nth element in CSS

...;/h1> <div>1</div> <div>2</div> <div>3</div> <div>4</div> <h2></h2> <div>5</div> <div>6</div> <div>7</div> <div>8</div> <h2></h2> <div>9</div> &lt...
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How do I escape a percentage sign in T-SQL?

... answered Aug 25 '11 at 13:46 gbngbn 382k7272 gold badges532532 silver badges629629 bronze badges ...
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How to select an element by classname using jqLite?

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What exactly is Java EE?

... maintain. Spring was then a much better alternative to EJB2. But since EJB3 (Java EE 5), the EJB API was much improved based on lessons learnt from Spring. Since CDI (Java EE 6), there's not really a reason to look at again another framework like Spring to make the developers more easy as to develo...
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How do I remove the border around a focused contenteditable pre?

... MariusMarius 53.1k2525 gold badges120120 silver badges142142 bronze badges ...