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What does `:_*` (colon underscore star) do in Scala?
...constructor signature
new Elem(prefix: String, label: String, attributes: MetaData, scope: NamespaceBinding,
child: Node*)
which is called as
new Elem(prefix, label, attributes, scope,
child1, child2, ... childN)
but here there is only a sequence, not child1, child2, etc. so ...
How can I resolve “Error: No developer directory found at /Developer”?
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Android Studio Multi-Windows for One Project
...one knows how to open two windows of Android Studio with both having the same project. I know you can drag tabs out, but that allows you to only edit that one file. I want two fully-featured windows with each being able to see the Project Files/Structure.
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Row count with PDO
There are many conflicting statements around. What is the best way to get the row count using PDO in PHP? Before using PDO, I just simply used mysql_num_rows .
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ANTLR: Is there a simple example?
...(the minus in: -1+9) or decimals like .99 (without a leading number), to name just two shortcomings. This is just an example you can work on yourself.
Here's the contents of the grammar file Exp.g:
grammar Exp;
/* This will be the entry point of our parser. */
eval
: additionExp
;
/* ...
What HTTP status response code should I use if the request is missing a required parameter?
...propiate based on the spec.
The 422 (Unprocessable Entity) status code means the server
understands the content type of the request entity (hence a
415(Unsupported Media Type) status code is inappropriate), and the
syntax of the request entity is correct (thus a 400 (Bad Reques...
django unit tests without a db
...to set up. And while it is fast to setup a db, I really don't need it in some situations.
11 Answers
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How do I prevent angular-ui modal from closing?
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What is the PostgreSQL equivalent for ISNULL()
...ing an MS-specific function that essentially is coalesce with only two parameters.
– GSerg
Feb 6 '10 at 20:35
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Difference between “read commited” and “repeatable read”
I think the above isolation levels are so alike. Could someone please describe with some nice examples what the main difference is ?
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