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Easily measure elapsed time

...easuring mechanism and have each callable's run time measured with minimal extra code, just by being called through a timer structure. Plus, at compile time you can parametrize the timing type (milliseconds, nanoseconds etc). Thanks to the review by Loki Astari and the suggestion to use variadic t...
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Set default CRAN mirror permanent in R

... I added extra information, as it wasn't worth an extra answer and a bit too much for a comment. – Joris Meys Dec 12 '11 at 15:04 ...
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How to get HTTP Response Code using Selenium WebDriver

...Capabilities; public class TestResponseCode { public static void main(String[] args) { // simple page (without many resources so that the output is // easy to understand String url = "http://www.york.ac.uk/teaching/cws/wws/webpage1.html"; DownloadPage(url); ...
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Using awk to print all columns from the nth to the last

...l end up with an initial delimiter ($1 is still included, just as an empty string). You can strip that with sed though: awk -F, -vOFS=, '{$1=""; print $0}' | sed 's/^,//' – cherdt Jul 7 '16 at 23:55 ...
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Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?

...owever, this method is affected by intermediate-object-creation as summing strings is, right? – Dr. Jan-Philip Gehrcke Jan 22 '15 at 21:22 6 ...
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What is the most efficient way to deep clone an object in JavaScript?

...nly supported by Firefox . I've done things like obj = JSON.parse(JSON.stringify(o)); but question the efficiency. I've also seen recursive copying functions with various flaws. I'm surprised no canonical solution exists. ...
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Rename Pandas DataFrame Index

...from a DataFrame, this attribute is set to the column name. We can pass a string name to the rename method to change it s.rename('FOOOOOD') state color Jane NY blue Steak Nick TX green Lamb Aaron FL red Mango Name: FOOOOOD, dtype: object DataFrames do not h...
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Given an array of numbers, return array of products of all other numbers (no division)

...= pj ; } return prods; } public static void main(String[] args) { System.out.println( Arrays.toString(products(1, 2, 3, 4, 5)) ); // prints "[120, 60, 40, 30, 24]" } } The loop invariants are pi = nums[0] * nums[1] *.. nums[i-1] and pj = nu...
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How do I convert a column of text URLs into active hyperlinks in Excel?

... 200 entries. NOTE: This solution does not work if the cell A1 contains a string longer than 255 characters. It results in a #VALUE! error share | improve this answer | foll...
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What is the shortest function for reading a cookie by name in JavaScript?

...s or tabs will not become visible. You can avoid this issue by storing the string-value from document.cookie in a variable and check if it is unchanged on each access. – Andreas Apr 1 '15 at 15:41 ...