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In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?

... From now on, if someone says that he never uses strict comparison operators, I will face him with these tables and make him cry. Still not sure if I grasp the concept of NaN though. I mean, typeof NaN // number but NaN === NaN //...
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reducing number of plot ticks

...hould be. For example, if the original tick labels are [0, 1, ..., 99] and now one sets nticks=10, then the new sparse labels will be placed ten times as long apart along the axis, i.e. now 1 will sit where 9 was, 2 where 19 was... and 9 where 99 was. – Vim Mar...
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make_unique and perfect forwarding

...on that is identical with the one given by the OP. Edit: std::make_unique now is part of C++14. share | improve this answer | follow | ...
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ModelState.IsValid == false, why?

...eturn Values.All(modelState => modelState.Errors.Count == 0); } } Now, it looks like it can't be. Well, that's for ASP.NET MVC v1. share | improve this answer | foll...
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Professional jQuery based Combobox control? [closed]

... some usability issues with this control, but as a user I don't think I'd know to start typing for the dropdownlist to turn into a textbox. I much prefer the Combo Dropdown Box, but it still has some features that I'd want and it's still in alpha. The only think I don't like about this other than i...
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What is the best way to unit test Objective-C code?

... Xcode 5 now has XCTest does it still include OCUnit? Will you update your answer with information for XCode 5. – BrightIntelDusk Mar 24 '14 at 22:48 ...
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Correct way to convert size in bytes to KB, MB, GB in JavaScript

...e fixed version below. Aliceljm does not active her copied code anymore Now, Fixed version unminified, and ES6'ed: (by community) function formatBytes(bytes, decimals = 2) { if (bytes === 0) return '0 Bytes'; const k = 1024; const dm = decimals < 0 ? 0 : decimals; const sizes...
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Expand Python Search Path to Other Source

... I know this thread is a bit old, but it took me some time to get to the heart of this, so I wanted to share. In my project, I had the main script in a parent directory, and, to differentiate the modules, I put all the supportin...
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Drop unused factor levels in a subsetted data frame

... It is a known issue, and one possible remedy is provided by drop.levels() in the gdata package where your example becomes > drop.levels(subdf) letters numbers 1 a 1 2 b 2 3 c 3 > levels(dro...
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Comparison of JSON Parser for Objective-C (JSON Framework, YAJL, TouchJSON, etc)

As far as I know, there are three JSON Parsers for Objective-C, JSON Framework , YAJL , and Touch JSON . Then, These three would have their own characteristics. For example: YAJL can be used as a SAX style parser. JSON Framework has relatively long history and is widely used. Touch JSO...