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C++ performance vs. Java/C#

...m impossible for Java or C# to match the speed of C++ because of this intermediate step, however I've been told that the latest compilers ("hot spot") can attain this speed or even exceed it. ...
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In Ruby on Rails, how do I format a date with the “th” suffix, as in, “Sun Oct 5th”?

... Use the ordinalize method from 'active_support'. >> time = Time.new => Fri Oct 03 01:24:48 +0100 2008 >> time.strftime("%a %b #{time.day.ordinalize}") => "Fri Oct 3rd" Note, if you are using IRB with Ruby 2.0, you must firs...
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sed one-liner to convert all uppercase to lowercase?

I have a textfile in which some words are printed in ALL CAPS. I want to be able to just convert everything in the textfile to lowercase, using sed . That means that the first sentence would then read, 'i have a textfile in which some words are printed in all caps.' ...
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Difference between setTimeout with and without quotes and parentheses

...earned recently about JavaScript timing events. When I learned about setTimeout at W3Schools , I noticed a strange figure which I didn’t run into before. They are using double quotes and then call the function. ...
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Programmatically access currency exchange rates [closed]

... an online ordering system but I'm in Australia and for international customers I'd like to show prices in US dollars or Euros so they don't have to make the mental effort to convert from Australian dollars. ...
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SQL Server: What is the difference between CROSS JOIN and FULL OUTER JOIN?

...aster when there are few matches between the two tables, as use of indexes means it doesn't bother reading all the rows on one of the tables. a full outer join must always read all rows in both tables (or the relevant indexes). In the case where indexes are not enough, or an underlying heap has to b...
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Remove insignificant trailing zeros from a number?

... I was about to post some code to strip the zeros but Daniel's solution seems to work. It even works for Strings such as "1.2345000". ("1.2345000" * 1).toString(); // becomes 1.2345 – Steven Aug 31 '10 at 21:1...
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Difference between Activity Context and Application Context

This has me stumped, I was using this in Android 2.1-r8 SDK: 7 Answers 7 ...
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Installing a local module using npm?

... From the npm-link documentation: In the local module directory: $ cd ./package-dir $ npm link In the directory of the project to use the module: $ cd ./project-dir $ npm link package-name Or in one go using relative paths: $ cd ./project...
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Wait 5 seconds before executing next line

... You have to put your code in the callback function you supply to setTimeout: function stateChange(newState) { setTimeout(function () { if (newState == -1) { alert('VIDEO HAS STOPPED'); } }, 5000); } Any other code will execute immediately. ...