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Add up a column of numbers at the Unix shell

... . . .| x=$(echo <(cat)); echo $((0+${x// /+}+0)) if you want all bash all the time: – qneill Apr 3 '15 at 23:31 ...
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C# How can I check if a URL exists/is valid?

...ething wrong. Thanks for the help though! – Daniel Waltrip Aug 2 '09 at 0:18 What is MyClient ? –...
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Disable Drag and Drop on HTML elements?

... browser gets clever and thinks I mean to drag and drop something. End result, my action gets put on hold while the browser does its drag and drop thing. ...
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Generics in C#, using type of a variable as parameter [duplicate]

...e way to get around this is to use implicit casting: bool DoesEntityExist<T>(T entity, Guid guid, ITransaction transaction) where T : IGloballyIdentifiable; calling it like so: DoesEntityExist(entity, entityGuid, transaction); Going a step further, you can turn it into an extension metho...
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How do I import other TypeScript files?

...he file on the top of the current file. You can do this like this: /// <reference path="../typings/jquery.d.ts"/> /// <reference path="components/someclass.ts"/> class Foo { } etc. These paths are relative to the current file. Your example: /// <reference path="moo.ts"/> ...
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Entity Framework. Delete all rows in table

... FYI, in order to use TRUNCATE the user must have ALTER permission on the table. (stackoverflow.com/questions/4735038/…) – Alex Mar 19 '15 at 10:57 7 ...
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Why, Fatal error: Class 'PHPUnit_Framework_TestCase' not found in …?

...Unit/Framework/TestCase.php'); UPDATE As of PHPUnit 3.5, there is a built-in autoloader class that will handle this for you: require_once 'PHPUnit/Autoload.php'; Thanks to Phoenix for pointing this out! share ...
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Key existence check in HashMap

... Although this is probably clearer as an example, you could also write if(value!=null || map.containsKey(key)) for the second part. At least if you want to do the same thing either way -- no repeated code. It'll work due to s...
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jQuery append() vs appendChild()

...9+). The JavaScript's append is similar to jQuery's append. You can pass multiple arguments. var elm = document.getElementById('div1'); elm.append(document.createElement('p'),document.createElement('span'),document.createElement('div')); console.log(elm.innerHTML); <div id="div1"></div...
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How do I trim leading/trailing whitespace in a standard way?

...to the given output buffer, which must be // large enough to store the result. If it is too small, the output is // truncated. size_t trimwhitespace(char *out, size_t len, const char *str) { if(len == 0) return 0; const char *end; size_t out_size; // Trim leading space while(isspace...