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How do you build a Singleton in Dart?
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I don't find it very intuitive reading new Singleton(). You have to read the docs to know that new isn't actually creating a new instance, as it normally would.
Here's another way to do singletons (Basically what Andrew said above).
lib/thing.dart
lib...
can you host a private repository for your organization to use with npm?
...n set your internal CouchDB as the registry config, then you'll be able to read any published packages, in addition to your private ones, and by default will only publish internally. If you then want to publish a package for the whole world to see, you can simply override the --registry config for t...
How to break out of a loop from inside a switch?
... condition.
Implies that it loops forever.
Code within the loop must be read to understand the terminating clause.
Loops that repeat forever prevent the user from terminating the program from within the program.
Is inefficient.
There are multiple loop termination conditions, including checking...
Good beginners tutorial to socket.io? [closed]
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To start with Socket.IO I suggest you read first the example on the main page:
http://socket.io/
On the server side, read the "How to use" on the GitHub source page:
https://github.com/Automattic/socket.io
And on the client side:
https://github.com/Automatti...
Export specific rows from a PostgreSQL table as INSERT SQL script
...anywhere with:
COPY other_tbl FROM '/path/to/file.csv';
COPY writes and read files local to the server, unlike client programs like pg_dump or psql which read and write files local to the client. If both run on the same machine, it doesn't matter much, but it does for remote connections.
There i...
How to get Erlang's release version number from a shell?
... minor version on my development machine:
erl -eval '{ok, Version} = file:read_file(filename:join([code:root_dir(), "releases", erlang:system_info(otp_release), "OTP_VERSION"])), io:fwrite(Version), halt().' -noshell
This reads from the appropriate file, as described in the docs.
...
Git: what is a dangling commit/blob and where do they come from?
...o worry about this at all because these dangling bits are normal and git already handle's them?
– doub1ejack
Aug 29 '13 at 16:15
8
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Set cache-control for entire S3 bucket automatically (using bucket policies?)
...--metadata-directive REPLACE \
--expires 2034-01-01T00:00:00Z --acl public-read --cache-control max-age=2592000,public
For an entire bucket (note --recursive flag):
aws s3 cp s3://mybucket/ s3://mybucket/ --recursive --metadata-directive REPLACE \
--expires 2034-01-01T00:00:00Z --acl public-read --...
What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
I have tried reading some articles, but I am not very clear on the concepts yet.
4 Answers
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How to create “No Activate” form in Firemonkey
...Form: TForm);
destructor Destroy; override;
property Left: Integer read GetLeft write SetLeft;
property Top: Integer read GetTop write SetTop;
property Height: Integer read GetHeight write SetHeight;
property Width: Integer read GetWidth write SetWidth;
property Visible: Bool...