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Why can't I assign a *Struct to an *Interface?

I'm just working through the Go tour , and I'm confused about pointers and interfaces. Why doesn't this Go code compile? 4...
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Why is early return slower than else?

...() [0.30939889008243426, 0.3035132258429485, 0.3046679117038593] Considering that the bytecode is identical, the only difference is the name of the function. In particular the timing test does a lookup on the global name. Try renaming without_else() and the difference disappears: >>> def...
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How can I set Image source with base64

... Try using setAttribute instead: document.getElementById('img') .setAttribute( 'src', 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5Erk...
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Show AlertDialog in any position of the screen

When we show an AlertDialog in android it shows in the center of the screen. Is there any way to change the position? 4 An...
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Android AsyncTask testing with Android Test Framework

I have a very simple AsyncTask implementation example and am having problem in testing it using Android JUnit framework. 7...
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Pushing from local repository to GitHub hosted remote

I created a local repository of my Visual Studio 2010 solution folder using Git GUI on my dev machine. I then created a remote repository in my GitHub account. Now, I am looking for how to push my local repository to the remote repository. ...
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How can I select every other line with multiple cursors in Sublime Text?

In Sublime Text 2, is it possible to instantly select every other (or odd/even) line and place multiple cursors on those lines? ...
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Type hinting a collection of a specified type

Using Python 3's function annotations, it is possible to specify the type of items contained within a homogeneous list (or other collection) for the purpose of type hinting in PyCharm and other IDEs? ...
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entity object cannot be referenced by multiple instances of IEntityChangeTracker. while adding relat

I am trying to save Employee details, which has references with City. But everytime I try to save my contact, which is validated I get the exception "ADO.Net Entity Framework An entity object cannot be referenced by multiple instances of IEntityChangeTracker" ...
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Rails - Validate Presence Of Association?

...model A that has a "has_many" association to another model B. I have a business requirement that an insert into A requires at least 1 associated record to B. Is there a method I can call to make sure this is true, or do I need to write a custom validation? ...