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How should one use std::optional?
...lacement new and a lot more other things with proper alignment and size in order to make it a literal type (i.e. use with constexpr) among other things. The naive T and bool approach would fail pretty quickly.
– Rapptz
Mar 13 '14 at 22:05
...
How can I use goto in Javascript?
... term that was popularized by Paul Irish, while discussing this script and PHP’s decision to add goto into their language.
And for those who do not immediately recognize that this entire thing is a joke, please forgive me. <—(insurance).
...
WiX tricks and tips
... <Publish Dialog ="ExitDialog"
Control ="Finish"
Order ="1"
Event ="DoAction"
Value ="CA.StartAppOnExit">WIXUI_EXITDIALOGOPTIONALCHECKBOXTEXT</Publish>
</UI>
If you do it this way, the "standard" appearance isn't quite right. ...
List vs Set vs Bag in NHibernate
...
NHibernate semantics:
List: Ordered collection of entities, duplicate allowed. Use a .NET IList in code. The index column will need to be mapped in NHibernate.
Set: Unordered collection of unique entities, duplicates not allowed. Use Iesi.Collection.ISe...
Choosing a stand-alone full-text search server: Sphinx or SOLR? [closed]
... Solr has many response writers other than xml, including JSON, PHP, Ruby, Python and a java binary format: lucene.apache.org/solr/api/org/apache/solr/request/…
– Mauricio Scheffer
Aug 16 '09 at 20:59
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Can Vim highlight matching HTML tags like Notepad++?
...ses, and square brackets. This is great for editing C-style languages like PHP and JavaScript. But what about matching HTML tags?
...
Application auto build versioning
...intln(xyz)
}
Then:
$ go run -ldflags "-X main.xyz=abc" main.go
abc
In order to set main.minversion to the build date and time when building:
go build -ldflags "-X main.minversion=`date -u +.%Y%m%d.%H%M%S`" service.go
If you compile without initializing main.minversion in this way, it will co...
Convert JS Object to form data
...(key, item[key]);
}
$.ajax({
url : 'http://example.com/upload.php',
data : form_data,
processData : false,
contentType : false,
type: 'POST'
}).done(function(data){
// do stuff
});
There are more examples in the documentation on MDN
...
Using LIMIT within GROUP BY to get N results per group?
...gregated function to get all years into a single column, grouped by id and ordered by rate:
SELECT id, GROUP_CONCAT(year ORDER BY rate DESC) grouped_year
FROM yourtable
GROUP BY id
Result:
-----------------------------------------------------------
| ID | GROUPED_YEAR ...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...his event, so it detects the rotation even when we do not intend it to. In order to solve this problem, we add a buffer when we detect $MotionEvent.ACTION_MOVE$, so that we only fire “rotation” when the positions of two fingers change above some threshold.
Figure 6. Block designed for Rotatio...