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Android - border for button

...pport:design:28.0.0' } style.xml Ensure your application theme inherits from Theme.MaterialComponents instead of Theme.AppCompat. <style name="AppTheme" parent="Theme.MaterialComponents.Light.DarkActionBar"> <!-- Customize your theme here. --> </style> • Bordered Butt...
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Split delimited strings in a column and insert as new rows [duplicate]

... As of Dec 2014, this can be done using the unnest function from Hadley Wickham's tidyr package (see release notes http://blog.rstudio.org/2014/12/08/tidyr-0-2-0/) > library(tidyr) > library(dplyr) > mydf V1 V2 2 1 a,b,c 3 2 a,c 4 3 b,d 5 4 e,f 6 . . &...
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#pragma once vs include guards? [duplicate]

...C can still fail under plausible conditions, such as build farms suffering from clock skew. I do not know what any other compiler's implementation is like, but I would not expect anyone to have done better.) share ...
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Do you (really) write exception safe code? [closed]

...y the smart pointer. Then, we create a copy t2 of t, and work on this copy from operation 4 to 7. If something throws, t2 is modified, but then, t is still the original. We still offer the strong guarantee. Then, we swap t and t2. Swap operations should be nothrow in C++, so let's hope the swap you ...
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Should I return a Collection or a Stream?

...likely to use the answer. First, note that you can always get a Collection from a Stream, and vice versa: // If API returns Collection, convert with stream() getFoo().stream()... // If API returns Stream, use collect() Collection<T> c = getFooStream().collect(toList()); So the question is, w...
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strdup() - what does it do in C?

...nd a lower case letter are reserved by the standard for future directions. From C11 7.1.3 Reserved identifiers: Each header declares or defines all identifiers listed in its associated sub-clause, and *optionally declares or defines identifiers listed in its associated future library directions ...
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How can I change image tintColor in iOS and WatchKit

...textFillRect(context, rect); UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return newImage; } @end so you would do: theImageView.image = [theImageView.image imageWithColor:[UIColor redColor]]; ...
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How to add a “open git-bash here…” context menu to the windows explorer?

... The easiest way is to install the latest Git from here. And while installing, make sure you are enabling the option Windows Explorer Integration. Once you are done, you will get those options in whenever you right click on any folder. Hope it helps. ...
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In mocha testing while calling asynchronous function how to avoid the timeout Error: timeout of 2000

... shorter version is -t. if you use mocha-test to run mocha from grunt task, this is also supported in options object options:{timeout:15000}. – svassr Aug 21 '14 at 15:12 ...
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What's the idiomatic syntax for prepending to a short python list?

...eally only efficient for rather short lists, as you ask. Here's a snippet from the CPython source where this is implemented - and as you can see, we start at the end of the array and move everything down by one for every insertion: for (i = n; --i >= where; ) items[i+1] = items[i]; If you...