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What does middleware and app.use actually mean in Expressjs?
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After simplifying things, a web server can be seen as a function that takes in a request and outputs a response. So if you view a web server as a function, you could organize it into several pieces and separate them into smaller functions so that the co...
How to check if an object is a certain type
... Obj.DataSource = cmd.ExecuteReader
If Obj.GetType() Is GetType(System.Web.UI.WebControls.DropDownList) Then
End If
Obj.DataBind()
End Sub
You can also use the TypeOf operator instead of the GetType method. Note that this tests if your object is compatible with the given type, not th...
How do iOS Push Notifications work?
...r each remote notification request a provider sends, it must:
Construct a JSON dictionary containing the notification’s payload, as described in Creating the Remote Notification Payload.
Add the payload, a globally-unique device token, and other delivery information to an HTTP/2 request. For info...
Benefits of EBS vs. instance-store (and vice-versa) [closed]
...p. EBS-backed AMIS tend to be used for 'traditional' server tasks, such as web or database servers that keep state locally and thus require the data to be available in the case of crashing.
One aspect I did not see mentioned is the fact that you can take snapshots of an EBS-backed instance while r...
Is SQL or even TSQL Turing Complete?
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https://web.archive.org/web/20110807062050/http://channel9.msdn.com/forums/TechOff/431432-SQL-Turing-Completeness-question
Is a discussion of this topic. A quote:
SQL as such (i.e. the SQL92 standard) is not turing complete. How...
The Definitive C Book Guide and List
...er Prinz and Ulla Kirch-Prinz (2002).
The comp.lang.c FAQ - Steve Summit. Web site with answers to many questions about C.
Various versions of the C language standards can be found here. There is an online version of the draft C11 standard.
The new C standard - an annotated reference (Free PDF) ...
ruby on rails f.select options with custom attributes
...ut finding this not in the docs, but by reading the rails source. https://web.archive.org/web/20130128223827/http://www.pogodan.com/blog/2011/02/24/custom-html-attributes-in-options-for-select
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What is a MIME type?
...d way of classifying file types on the Internet. Internet programs such as Web servers and browsers all have a list of MIME types, so that they can transfer files of the same type in the same way, no matter what operating system they are working in.
A MIME type has two parts: a type and a subtype. ...
XSD: What is the difference between xs:integer and xs:int?
...nteger.
xs:integer is an integer unbounded value.
See for details https://web.archive.org/web/20151117073716/http://www.w3schools.com/schema/schema_dtypes_numeric.asp
For example, XJC (Java) generates Integer for xs:int and BigInteger for xs:integer.
The bottom line: use xs:int if you want to wor...
what does -webkit-transform: translate3d(0,0,0); exactly do? Apply to body?
what does -webkit-transform: translate3d(0,0,0); exactly do?
Does it have any performance issues? Should I just apply it to the body or individual elements? It seems to improve scroll events drastically.
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