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Match multiple cases classes in scala
I'm doing matching against some case classes and would like to handle two of the cases in the same way. Something like this:
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TransformXml task could not be loaded from Microsoft.Web.Publishing.Tasks.dll
Has anyone seen this error and know how to fix it?
10 Answers
10
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How to define an enumerated type (enum) in C?
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Declaring an enum variable is done like this:
enum strategy {RANDOM, IMMEDIATE, SEARCH};
enum strategy my_strategy = IMMEDIATE;
However, you can use a typedef to shorten the variable declarations, like so:
typedef enum {RANDOM, IMMEDIATE, SEARCH} strategy;
strategy my_strategy = IMME...
How to write a scalable Tcp/Ip based server
... HTTP where there are many short connections, but rather a client connects and stays connected for hours or days or even weeks).
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Shuffle two list at once with same order
...t predictive performance of these reviews with pre-processing of the data and without pre-processing. But there is problem, in lists documents and documents2 I have the same documents and I need shuffle them in order to keep same order in both lists. I cannot shuffle them separately because eac...
MySQL with Node.js
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github.com/bminer/node-mysql-queues for transactions and multiple statement support for use with node-mysql.
– BMiner
Dec 29 '11 at 22:14
2
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Copy object values in Visual Studio debug mode
...tudio debug mode it's possible to hover over variables to show their value and then right-click to "Copy", "Copy Expression" or "Copy Value".
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Using git to get just the latest revision
...o track a project that uses git. I don't want to clone the full repository and the full history, I just want the latest revision, and I want to be able to update to new revisions from the remote project.
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How to do associative array/hashing in JavaScript
...h new Array() is frowned up. The article eventually mentions its drawbacks and suggests new Object() or {} as preferred alternatives, but that's near the end and I fear most readers won't get that far.
– Daniel Lubarov
May 16 '15 at 5:55
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Create PostgreSQL ROLE (user) if it doesn't exist
...sword';
END IF;
END
$do$;
(Building on @a_horse_with_no_name's answer and improved with @Gregory's comment.)
Unlike, for instance, with CREATE TABLE there is no IF NOT EXISTS clause for CREATE ROLE (up to at least pg 12). And you cannot execute dynamic DDL statements in plain SQL.
Your reques...