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Can I apply the required attribute to fields in HTML5?

... If a select element has a required attribute specified, does not have a multiple attribute specified, and has a display size of 1 (do not have SIZE=2 or more - omit it if not needed); and if the value of the first option element in the select element's list of optio...
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Proxies with Python 'Requests' module

... Does it work without a proxy? Some of our users has no proxy and some has. – jonasl Nov 2 '14 at 6:55 ...
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Bootstrap Dropdown menu is not working

...r to show up perfectly, but when I click on "Dropdown" (either of them) it does not display the dropdown menu. I have tried looking on other posts about this, but nothing that fixed everyone's problems helped. I copied the source straight from bootstrap's website, but I can't seem to get it to work ...
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What is the difference between a pseudo-class and a pseudo-element in CSS?

...e a pseudo-class while a user interacts with the document. Source What does this mean? The important nature of pseudo-classes is stated in the very first sentence: "the pseudo-class concept [...] permit selection". It enables the author of an stylesheet to differ between elements based on infor...
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How to get first N elements of a list in C#?

... Does it throw exception if there are only, for example, 3 items in the list? Or will it take as many as there are up to 5? – bobek Feb 22 '12 at 21:08 ...
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Is this a “good enough” random algorithm; why isn't it used if it's faster?

...etimes it reaches the desired uniform distribution, but more than often it doesn't. Here's one of the more extreme examples, it's even beyond the borders of the graph: QR distribution |8000 |9000 |10000 |11000 |12000 0.0xxx: 41788 :################################################## ...
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Where is body in a nodejs http.get response?

...quest body req.write('data\n'); req.write('data\n'); req.end(); http.get does the same thing as http.request except it calls req.end() automatically. var options = { host: 'www.google.com', port: 80, path: '/index.html' }; http.get(options, function(res) { console.log("Got response: " + ...
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Finding what branch a Git commit came from

... While Dav is correct that the information isn't directly stored, that doesn't mean you can't ever find out. Here are a few things you can do. Find branches the commit is on git branch -a --contains <commit> This will tell you all branches which have the given commit in their history. ...
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nil detection in Go

...lang.org/p/k2EmRcels6. Whether it's '!=' or '==' makes no difference; what does make a difference is whether config is a struct or pointer to struct. – stewbasic Oct 18 '17 at 2:28 ...
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UITableView - change section header color

... an old question, but I think the answer needs to be updated. This method does not involve defining and creating your own custom view. In iOS 6 and up, you can easily change the background color and the text color by defining the -(void)tableView:(UITableView *)tableView willDisplayHeaderVie...