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Passing parameters to addTarget:action:forControlEvents

...wsDetails: method here. You just create a selector to make button able to call it when certain action occurs (touch up in your case). Controls can use 3 types of selectors to respond to actions, all of them have predefined meaning of their parameters: with no parameters action:@selector(switchToN...
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MongoDB: Combine data from multiple collections into one..how?

..., reduce; db.users_comments.remove(); // setup sample data - wouldn't actually use this in production db.users.remove(); db.comments.remove(); db.users.save({firstName:"Rich",lastName:"S",gender:"M",country:"CA",age:"18"}); db.users.save({firstName:"Rob",lastName:"M",gender:"M",country:"US",age:"25...
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“unpacking” a tuple to call a matching function pointer

...<<b<<" "<<c<< std::endl; }; auto params = std::make_tuple(1,2.0,"Hello"); std::apply(f, params); Just felt that should be stated once in an answer in this thread (after it already appeared in one of the comments). The basic C++14 solution is still missing in this thread....
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Android Fragment lifecycle over orientation changes

...mit(); } else { // do nothing - fragment is recreated automatically } Be warned though: problems will occur if you try and access Activity Views from inside the Fragment as the lifecycles will subtly change. (Getting Views from a parent Activity from a Fragment isn't easy). ...
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Understanding the map function

...d, function must take that many arguments and is applied to the items from all iterables in parallel. 6 Answers ...
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Struct like objects in Java

...ck such methods in your tests. If you create a new class you might not see all possible actions. It's like defensive programming - someday getters and setters may be helpful, and it doesn't cost a lot to create/use them. So they are sometimes useful. In practice, most fields have simple getters and...
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What's the difference between setWebViewClient vs. setWebChromeClient?

... From the source code: // Instance of WebViewClient that is the client callback. private volatile WebViewClient mWebViewClient; // Instance of WebChromeClient for handling all chrome functions. private volatile WebChromeClient mWebChromeClient; // SOME OTHER SUTFFF....... /** * Set the WebView...
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“Wrap with try…catch” in IntelliJ?

...ity Guide under the Help menu from time to time. Not only does it tell me all the shortcuts, but it keeps track of how many times I've used each one and when I last used it. I can see how well I'm leveraging the shortcuts. ...
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How to use RestSharp with async/await

...g to has been made by me :) So let me show you how to use it, as it is actually very simple. Previously you had methods like ExecuteAsyncGet that would return a RestSharp custom type named RestRequestAsyncHandle. This type could not be awaited as async/await works on Task and Task<T> return ty...
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What do

...hat they're subclasses of a generic function type (From) => To, but that's all it says. Um, what? Maybe there's documentation somewhere, but search engines don't handle "names" like " ...