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What are allowed characters in cookies?

...an RFC 2616 token, which means you can pick from the alphanums plus: !#$%&'*+-.^_`|~ In the cookie value it formally bans the (filtered by browsers) control characters and (inconsistently-implemented) non-ASCII characters. It retains cookie_spec's prohibition on space, comma and semicolon, pl...
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How to run a program without an operating system?

How do you run a program all by itself without an operating system running? Can you create assembly programs that the computer can load and run at startup, e.g. boot the computer from a flash drive and it runs the program that is on the CPU? ...
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Why {} + {} is NaN only on the client side? Why not in Node.js?

... ')', self.context, 'repl', function (e, ret) { if (e && !isSyntaxError(e)) return finish(e); if (typeof ret === 'function' && /^[\r\n\s]*function/.test(evalCmd) || e) { // Now as statement without parens. self.eval(eval...
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Relative URLs in WordPress

... <?php wp_make_link_relative( $link ) ?> Convert full URL paths to relative paths. Removes the http or https protocols and the domain. Keeps the path '/' at the beginning, so it isn't a true relative link, but f...
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Why doesn't print work in a lambda?

...ion. In Python 2.x, print is a statement. However, in Python 3, print is a function (and a function application is an expression, so it will work in a lambda). You can (and should, for forward compatibility :) use the back-ported print function if you are using the latest Python 2.x: In [1324]: fro...
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How do I get a string format of the current date time, in python?

For example, on July 5, 2010, I would like to calculate the string 4 Answers 4 ...
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Detect Click into Iframe using JavaScript

....blur( function() { if( overiFrame != -1 ) $.post('log.php', {id:overiFrame}); /* example, do your stats here */ }); }); Very elegant solution with a minor downside: if a user presses ALT-F4 when hovering the mouse over an iFrame it will log it as a click. This only happene...
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Windows threading: _beginthread vs _beginthreadex vs CreateThread C++

...r creating another thread of control at the kernel level. _beginthread() & _beginthreadex() are C runtime library calls that call CreateThread() behind the scenes. Once CreateThread() has returned, _beginthread/ex() takes care of additional bookkeeping to make the C runtime library usable &amp...
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Is it safe to push_back an element from the same vector?

...y const reference can be changed during execution of the function Examples: Given std::vector v: v.insert(v.begin(), v[2]); v[2] can be changed by moving elements of vector The proposed resolution was that this was not a defect: vector::insert(iter, value) is required to ...
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How do you read CSS rule values with JavaScript?

I would like to return a string with all of the contents of a CSS rule, like the format you'd see in an inline style. I'd like to be able to do this without knowing what is contained in a particular rule, so I can't just pull them out by style name (like .style.width etc.) ...