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What is the colon operator in Ruby?
When I say { :bla => 1, :bloop => 2 } , what exactly does the : do? I read somewhere about how it's similar to a string, but somehow a symbol.
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Which kind of pointer do I use when?
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Shared ownership:
The shared_ptr and weak_ptr the standard adopted are pretty much the same as their Boost counterparts. Use them when you need to share a resource and don't know which one will be the last to be alive. Use weak_ptr to observe the shared resource without influencing it...
Favorite Visual Studio keyboard shortcuts [closed]
...k (or forwards) to the last place it was. No more scrolling back or PgUp/PgDown to find out where you were.
This switches open windows in Visual Studio:
Ctrl + tab and the opposite Ctrl + Shift + tab
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How to convert QString to std::string?
I am trying to do something like this:
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Change from SQLite to PostgreSQL in a fresh Rails project
...different restrictions on their default setup. So if username and password do not apply, you can leave them out, or in with no values. This was just more of a 'catch all' type of configuration.
– Chris Barretto
Mar 5 '13 at 16:58
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include external .js file in node.js app
...ace an emphasis on what everyone else has been saying var foo in top level does not create a global variable. If you want a global variable then write global.foo. but we all know globals are evil.
If you are someone who uses globals like that in a node.js project I was on I would refactor them away...
Using node.js as a simple web server
... CORS requests:
$ http-server -o --cors
For more options, check out the documentation for http-server on GitHub, or run:
$ http-server --help
Lots of other nice features and brain-dead-simple deployment to NodeJitsu.
Feature Forks
Of course, you can easily top up the features with your own f...
Execute script after specific delay using JavaScript
...can be passed the time after which the function will be executed.
See: Window setTimeout() Method.
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Converting an int to std::string
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std::to_string() does not work in MinGW, if anyone cares.
– Archie
Nov 9 '15 at 8:55
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Using the “final” modifier whenever applicable in Java [closed]
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I think it all has to do with good coding style. Of course you can write good, robust programs without using a lot of final modifiers anywhere, but when you think about it...
Adding final to all things which should not change simply narrows down...