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Creating range in JavaScript - strange syntax

... Understanding this "hack" requires understanding several things: Why we don't just do Array(5).map(...) How Function.prototype.apply handles arguments How Array handles multiple arguments How the Number function handles arguments ...
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Python, compute list difference

...vation is important Roman Bodnarchuk may have a better approach. For speed and pure set-like behavior this one seems better. – Bryan P Feb 13 '15 at 23:01 8 ...
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How do I list all cron jobs for all users?

Is there a command or an existing script that will let me view all of a *NIX system's scheduled cron jobs at once? I'd like it to include all of the user crontabs, as well as /etc/crontab , and whatever's in /etc/cron.d . It would also be nice to see the specific commands run by run-parts in /e...
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Throwing cats out of windows

...y write a little DP (dynamic programming) for the general case of n floors and m cats. The main formula, a[n][m] = min(max(a[k - 1][m - 1], a[n - k][m]) + 1) : for each k in 1..n, should be self-explanatory: If first cat is thrown from k-th floor and dies, we now have k - 1 floors to check (all...
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sys.argv[1] meaning in script

I'm currently teaching myself Python and was just wondering (In reference to my example below) in simplified terms what the sys.argv[1] represents. Is it simply asking for an input? ...
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What is dynamic programming? [closed]

...be a very long process, but what if I give you the results for n=1,000,000 and n=1,000,001? Suddenly the problem just became more manageable. Dynamic programming is used a lot in string problems, such as the string edit problem. You solve a subset(s) of the problem and then use that information to ...
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finding and replacing elements in a list

I have to search through a list and replace all occurrences of one element with another. So far my attempts in code are getting me nowhere, what is the best way to do this? ...
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Why avoid increment (“++”) and decrement (“--”) operators in JavaScript?

... My view is to always use ++ and -- by themselves on a single line, as in: i++; array[i] = foo; instead of array[++i] = foo; Anything beyond that can be confusing to some programmers and is just not worth it in my view. For loops are an exception,...
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Circle drawing with SVG's arc path

Short question: using SVG path, we can draw 99.99% of a circle and it shows up, but when it is 99.99999999% of a circle, then the circle won't show up. How can it be fixed? ...
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Solution to INSTALL_FAILED_INSUFFICIENT_STORAGE error on Android [closed]

The INSTALL_FAILED_INSUFFICIENT_STORAGE error is the bane of every Android developer's life. It happens regardless of app size, or how much storage is available. Rebooting the target device fixes the problem briefly, but it soon comes back. There are hundreds (if not thousands) of message board po...