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Android.app Fragments vs. android.support.v4.app using ViewPager?

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#ifdef in C#

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Does a `+` in a URL scheme/host/path represent a space?

I am aware that a + in the query string of a URL represents a space. Is this also the case outside of the query string region? That is to say, does the following URL: ...
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How do I make an HTML text box show a hint when empty?

I want the search box on my web page to display the word "Search" in gray italics. When the box receives focus, it should look just like an empty text box. If there is already text in it, it should display the text normally (black, non-italics). This will help me avoid clutter by removing the label....
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Correct way to use get_or_create?

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Does Go have “if x in” construct similar to Python?

...: visitedURL := map[string]bool { "http://www.google.com": true, "https://paypal.com": true, } if visitedURL[thisSite] { fmt.Println("Already been here.") } share | improve this answer...
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How does Google Instant work?

... search works? It seems to just be AJAX calls to the old search, but it's pretty hard to simplify Google that much. Anybody have speculations? ...
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AngularJS : How to watch service variables?

... You can always use the good old observer pattern if you want to avoid the tyranny and overhead of $watch. In the service: factory('aService', function() { var observerCallbacks = []; //register an observer this.registerObserverCallback = function(callback){...
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Can you nest html forms?

...ntrols outside of a form to link them to a specific form element (by id). https://www.impressivewebs.com/html5-form-attribute/ This way you can structure your html like this: <form id="main-form" action="/main-action" method="post"></form> <form id="sub-form" action="/sub-action" ...
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MySQL show current connection info

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