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Is it good practice to NULL a pointer after deleting it?

...d to achieve in practice. I prefer a masked double delete bug over UB. Finally, a sidenote regarding managing object allocation, I suggest you take a look at std::unique_ptr for strict/singular ownership, std::shared_ptr for shared ownership, or another smart pointer implementation, depending on yo...
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Is there a difference between foreach and map?

...important point to mention (this is particularly true in Scala) is that a call to map does not result in the execution of its underlying logic until when the expected transformed list is summoned. In contrast, foreach's operation is computed immediately. – solimant ...
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When tracing out variables in the console, How to create a new line?

... In ES6/ES2015 you can use string literal syntax called template literals. Template strings use backtick character instead of single quote ' or double quote marks ". They also preserve new line and tab const roleName = 'test1'; const role_ID = 'test2'; const modal_ID ...
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Stream vs Views vs Iterators

... First, they are all non-strict. That has a particular mathematical meaning related to functions, but, basically, means they are computed on-demand instead of in advance. Stream is a lazy list indeed. In fact, in Scala, a Stream is a List wh...
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R - Concatenate two dataframes?

...2 data frames, you can use Reduce(rbind, list_of_data_frames) to mash them all together! – Yourpalal Aug 13 '15 at 21:12 1 ...
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How to fix “Referenced assembly does not have a strong name” error?

... To avoid this error you could either: Load the assembly dynamically, or Sign the third-party assembly. You will find instructions on signing third-party assemblies in .NET-fu: Signing an Unsigned Assembly (Without Delay Signing). Signing Third-Party Assemblies The basic principle t...
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Android: Want to set custom fonts for whole application not runtime

...Condensed); break; } values.recycle(); } Now you're all set. You can add more attributes for about anything (you could add another one for typefaceStyle -- bold, italic, etc.) but now let's see how to use it: <?xml version="1.0" encoding="utf-8"?> <LinearLayout x...
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Merging: Hg/Git vs. SVN

...it or Mercurial there is no technical difference between trunk and branch: all branches are created equal (there might be social difference, though). Merging in either direction is done the same way. You need to provide new -g (--use-merge-history) option to svn log and svn blame to take merge trac...
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Pretty git branch graphs

I've seen some books and articles have some really pretty looking graphs of git branches and commits. How can I make high-quality printable images of git history? ...
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Using Version Control for Home Development?

...rk methodology associated with using source control prepares you professionally. Storage efficiency. Current source control systems store revisions as a delta difference to the previous revision. This means that it is more disk efficient as the entire file is not stored but only the differences. You...