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Is there any overhead to declaring a variable within a loop? (C++)

I am just wondering if there would be any loss of speed or efficiency if you did something like this: 13 Answers ...
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Is there a difference between `continue` and `pass` in a for loop in python?

Is there any significant difference between the two python keywords continue and pass like in the examples 11 Answers ...
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Should I make HTML Anchors with 'name' or 'id'?

When one wants to refer to some part of a webpage with the " http://example.com/#foo " method, should one use 14 Answers ...
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Position icons into circle

How can I position several <img> elements into a circle around another and have those elements all be clickable links as well? I want it to look like the picture below, but I have no idea how to achieve that effect. ...
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How can I pair socks from a pile efficiently?

Yesterday I was pairing the socks from the clean laundry and figured out the way I was doing it is not very efficient. I was doing a naive search — picking one sock and "iterating" the pile in order to find its pair. This requires iterating over n/2 * n/4 = n 2 /8 socks on average. ...
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Check if a Bash array contains a value

In Bash, what is the simplest way to test if an array contains a certain value? 35 Answers ...
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Bytes of a string in Java

In Java, if I have a String x , how can I calculate the number of bytes in that string? 8 Answers ...
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Checking if a key exists in a JS object

I have the following JavaScript object: 7 Answers 7 ...
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Dynamically adding a form to a Django formset with Ajax

I want to automatically add new forms to a Django formset using Ajax, so that when the user clicks an "add" button it runs JavaScript that adds a new form (which is part of the formset) to the page. ...
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Convert Java Array to Iterable

I have an Array of primitives, for example for int, int[] foo. It might be a small sized one, or not. 10 Answers ...