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Is there documentation for the Rails column types?
...
Guidelines built from personal experience:
String:
Limited to 255 characters (depending on DBMS)
Use for short text fields (names, emails, etc)
Text:
Unlimited length (depending on DBMS)
Use for comments, blog posts, etc...
Git Commit Messages: 50/72 Formatting
...d descriptive, but that is what a well-written summary
should do.
That said, it seems like kernel maintainers do indeed try to keep things around 50. Here’s a histogram of the lengths of the summary lines in the git log for the kernel:
(view full-sized)
There is a smattering of commits that ...
What's the point of map in Haskell, when there is fmap?
Everywhere I've tried using map , fmap has worked as well. Why did the creators of Haskell feel the need for a map function? Couldn't it just be what is currently known as fmap and fmap could be removed from the language?
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Repeater, ListView, DataList, DataGrid, GridView … Which to choose?
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It's really about what you trying to achieve
Gridview - Limited in design, works like an html table. More in built functionality like edit/update, page, sort. Lots of overhead.
DataGrid - Old version of the Gridview. A gridview is a super datagrid.
Datalist - more custom...
Implementing MVC with Windows Forms
...t data being “table like” (e.g. invoices) that work well in standard grid controls / need custom controls for most of the UI data.
One developer / teams of 10 or 20 developers (just on the UI)
Lots of unit test using mocks etc / no unit tests
Therefore I don’t think it’s possible to crea...
What Content-Type value should I send for my XML sitemap?
...nconvenient for some reason (e.g., bad web
servers), application/xml provides an alternative (see "Optional
parameters" of application/xml registration in Section 3.2).
For text/xml:
Conformant with [RFC2046], if a text/xml entity is received with
the charset parameter omitted, MIME proc...
CSS display:table-row does not expand when width is set to 100%
...cludes a containing table. Without it your original question basically provides the equivalent bad markup of:
<tr style="width:100%">
<td>Type</td>
<td style="float:right">Name</td>
</tr>
Where's the table in the above? You can't just have a row out of ...
node.js child process - difference between spawn & fork
... for your machine/scenario.
Ultimately you could use spawn in a way that did the above, by sending spawn a Node command. But this would be silly, because fork does some things to optimize the process of creating V8 instances. Just making it clear, that ultimately spawn encompasses fork. Fork is ...
Getting an element from a Set
Why doesn't Set provide an operation to get an element that equals another element?
24 Answers
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PostgreSQL return result set as JSON array?
...ster when using to_jsonb. I suspect this is due to overhead parsing and validating the JSON result of json_agg.
Or you can use an explicit cast:
SELECT
json_build_object(
'a', json_agg(t.a),
'b', json_agg(t.b)
)::jsonb
FROM t
The to_jsonb version allows you to avoid the c...