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Optional Parameters in Go?

...eah, except the notion of "zero value" is absolutely useless for int/float/string types, because those values are meaningful and so you can't tell the difference if the value was omitted from the struct or if zero value was passed intentionally. – keymone Mar 2...
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How to get a cross-origin resource sharing (CORS) post request working

... I finally stumbled upon this link "A CORS POST request works from plain javascript, but why not with jQuery?" that notes that jQuery 1.5.1 adds the Access-Control-Request-Headers: x-requested-with header to all CORS requests....
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“Code too large” compilation error in Java

...size for code in Java? I wrote a function with more than 10,000 lines. Actually, each line assigns a value to an array variable. ...
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How could I use requests in asyncio?

I want to do parallel http request tasks in asyncio , but I find that python-requests would block the event loop of asyncio . I've found aiohttp but it couldn't provide the service of http request using a http proxy. ...
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ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock'

I installed MySQL on Mac OS X Mountain Lion with homebrew install mysql , but when I tried mysql -u root I got the following error: ...
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JavaScript and Threads

...onBat JavaScript Benchmark (first link) The Gears plugin can also be installed in Firefox. Safari 4, and the WebKit nightlies have worker threads: JavaScript Ray Tracer Chrome has Gears baked in, so it can do threads, although it requires a confirmation prompt from the user (and it uses a d...
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How to fix a locale setting warning from Perl?

...cale failed. perl: warning: Please check that your locale settings: LC_ALL = (unset), LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). My guess is you used ssh to connect to this older host from a newer desktop ma...
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Invert “if” statement to reduce nesting

...cked this code from the refactoring catalog. This specific refactoring is called: Replace Nested Conditional with Guard Clauses. share | improve this answer | follow ...
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Time complexity of Euclid's Algorithm

... The base is the golden ratio obviously. Why? Because it takes exactly one extra step to compute nod(13,8) vs nod(8,5). For a fixed x if y<x the worst case performance is x=fib(n+1), y=fib(n). Here y depends on x, so we can look at x only. – Stepan Jul 27 '1...
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Origin null is not allowed by Access-Control-Allow-Origin

...equest header Origin: null My PHP response header (Note that 'null' is a string). HTTP_REFERER allow cross-origin from a remote server to another. header('Access-Control-Allow-Origin: '.(trim($_SERVER['HTTP_REFERER'],'/')?:'null'),true); header('Access-Control-Allow-Credentials:true',true); I ...