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Should I use 'border: none' or 'border: 0'?

...e have the lowest priority. […] If none of the styles are hidden and at least one of them is not none, then narrow borders are discarded in favor of wider ones. […] If border styles differ only in color, […] So, in a table context, border: hidden (or border-style: hidden) will have the hi...
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Assignment inside lambda expression in Python

... are evaluated on the C side and thus can give us an increase in speed. At least that's my impression after reading one of Guido's essays. My guess is this would also go against the philosophy of having one right way of doing any one thing in Python. ...
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Application_Error not firing when customerrors = “On”

...e an static HTML page at first but the response code was still 200 but, at least it didn't redirect. I then got an idea from this answer... I decided to give up on MVC for error handling. I created an Error.aspx and a PageNotFound.aspx. These pages were very simple but they had one piece of magic.....
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Why does sudo change the PATH?

...path="/bin:/usr/bin:/usr/local/bin" but when I do that in Ubuntu 8.10 at least, it gives me this error: visudo: unknown defaults entry `secure_path' referenced near line 10 Ubuntu bug #50797 ("sudo built with --with-secure-path is problematic") Worse still, as far as I can tell, it is i...
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How to convert linq results to HashSet or HashedSet

...mparer); } } Note that you really do want an extension method (or at least a generic method of some form) here, because you may not be able to express the type of T explicitly: var query = from i in Enumerable.Range(0, 10) select new { i, j = i + 1 }; var resultSet = query.ToHashS...
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URL encoding the space character: + or %20?

...reats them as %20. EDIT: It seems I'm mistaken. Python's urlencode() (at least in 2.7.2) uses quote_plus() instead of quote() and thus encodes spaces as "+". It seems also that the W3C recommendation is the "+" as per here: http://www.w3.org/TR/html4/interact/forms.html#h-17.13.4.1 And in fact, y...
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How to use localization in C#

... VS 2017 resx with localization in winform is not working due to a bug (at least till version 15.4). A ticket is available: developercommunity.visualstudio.com/content/problem/63772/… – muccix Nov 25 '17 at 13:33 ...
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Does Swift have documentation generation support?

...for item in array { /// print(item) /// } An indentation of at least four spaces is required. Inline Elements Emphasis (italics): /// Add like *this*, or like _this_. Strong (bold): /// You can **really** make text __strong__. Note that you cannot mix asterisks (*) and undersc...
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What is JavaScript garbage collection?

...urse there's no avoiding it sometimes - it is always beneficial to have at least a rough idea of how garbage collection works. Historical note: an earlier revision of the answer had an incorrect reference to the delete operator. In JavaScript the delete operator removes a property from an object, a...
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How do I find out which keystore was used to sign an app?

...rent reasons. Java 1.6 seems to be the most extended version so far, or at least widespread, and whilst the accepted solution works with both 1.6 and 1.7, this one will only work with 1.7, so I don't think this should be the accepted answer (yet!). (Also note that the accepted answer is form 2012, ...