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ruby inheritance vs mixins
...is topic in The Well-Grounded Rubyist (great book, by the way). The author does a better job of explaining than I would so I'll quote him:
No single rule or formula always results in the right design. But it’s useful to keep a
couple of considerations in mind when you’re making class-versus-...
How to drop all tables in a SQL Server database?
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It doesn't work for me either when there are multiple foreign key tables.
I found that code that works and does everything you try (delete all tables from your database):
DECLARE @Sql NVARCHAR(500) DECLARE @Cursor CURSOR
SET @...
How to keep the console window open in Visual C++?
...(/SUBSYSTEM:CONSOLE)"
Click Apply, wait for it to finish doing whatever it does, then click OK. (If "Apply" is grayed out, choose some other subsystem option, click Apply, then go back and apply the console option. My experience is that OK by itself won't work.)
CTRL-F5 and the subsystem hints wor...
Is returning null bad design? [closed]
...returning null is that you do not have to check for it and hence your code does not need to follow a different path based on the return value. You might want to check out the Null Object Pattern which provides more information on this.
For example, if I were to define a method in Java that returne...
.keyCode vs. .which
...al key) and code (for the physical placement of the key). But note that IE doesn't support code, and its support for key is based on an older version of the spec so isn't quite correct. As I write this, the current Edge based on EdgeHTML and Chakra doesn't support code either, but Microsoft is rolli...
Error: Cannot access file bin/Debug/… because it is being used by another process
... It's happening in Visual Studio 17, and restarting Visual Studio doesn't help.
– Rob Lyndon
May 21 '17 at 11:44
2
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What are libtool's .la file for?
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Does it mean that in order to generate .la file, I need to use libtool (e.g. from automake)? One can rely on libtool to link the object files (gnu.org/software/libtool/manual/html_node/Using-Automake.html) but if I want to di...
In C#, What is a monad?
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In your ; example: What objects/data types does ; map? (Think List maps T to List<T>) How does ; map morphisms/functions between objects/data types? What is pure, join, bind for ;?
– Micha Wiedenmann
Jan 4 '19 at 12:49
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Firefox session cookies
...on of this is that the ONLY way the server has to require that the browser does not maintain a Cookie on exit is to set no Expires value (i.e a session cookie). If a browser does not honor that semantic then its not honoring the server's response.
Essentially the user agent is deciding to ignore t...
Deploying my application at the root in Tomcat
...t path must either be an empty string or start with a '/'. The path [ROOT] does not meet these criteria and has been changed to [/ROOT]
– Nikita Bosik
Apr 1 '15 at 0:59
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