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Why is lazy evaluation useful?

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How to count certain elements in array?

...ar count = 0; for(var i = 0; i < array.length; ++i){ if(array[i] == 2) count++; } share | improve this answer | follow | ...
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Need a simple explanation of the inject method

... 209 You can think of the first block argument as an accumulator: the result of each run of the blo...
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关于我们 · App Inventor 2 中文网,少儿编程陪伴者

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Concatenate two slices in Go

I'm trying to combine the slice [1, 2] and the slice [3, 4] . How can I do this in Go? 7 Answers ...
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Remap values in pandas column with a dict

I have a dictionary which looks like this: di = {1: "A", 2: "B"} 10 Answers 10 ...
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How to install both Python 2.x and Python 3.x in Windows

...ging Library (PIL), ImageMagick, and wxPython, all of which require Python 2.x. 18 Answers ...
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JavaScript function similar to Python range()

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Rounding up to next power of 2

I want to write a function that returns the nearest next power of 2 number. For example if my input is 789, the output should be 1024. Is there any way of achieving this without using any loops but just using some bitwise operators? ...
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Could not locate Gemfile

... answered Jul 25 '10 at 16:40 JoniJoni 2,85733 gold badges2121 silver badges2222 bronze badges ...