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Keep-alive header clarification
...n The IIS (F) sends keep alive header (or user sends keep-alive) , does it mean that (E,C,B) save a connection
No. Routers don't need to remember sessions. In fact, multiple TCP packets belonging to same TCP session need not all go through same routers - that is for TCP to manage. Routers just ch...
NodeJS - What does “socket hang up” actually mean?
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From a functional perspective can you explain what this means? I'm trying to build safeguards here by adding the offending urls to an array then scraping them later. I read in a few places that the errors might be a queuing issue with Node, don't know the best way to remedy and av...
Is iterating ConcurrentHashMap values thread safe?
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What does it mean?
That means that each iterator you obtain from a ConcurrentHashMap is designed to be used by a single thread and should not be passed around. This includes the syntactic sugar that the for-each loop provides.
What ...
How to create a drop-down list?
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Best way to do it is:
Preview:
XML:
<Spinner
android:id="@+id/spinner1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:drawable/btn_dropdown"
android:spinnerMode="dropdown"/>
Java:
//get the spinner...
What is an “unwrapped value” in Swift?
...ou have to understand what an Optional type is. An optional type basically means that the variable can be nil.
Example:
var canBeNil : Int? = 4
canBeNil = nil
The question mark indicates the fact that canBeNil can be nil.
This would not work:
var cantBeNil : Int = 4
cantBeNil = nil // can't do...
Load and execute external js file in node.js with access to local variables?
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@AndersonGreen - He means putting variables in global scope.
– Tim
Sep 11 '12 at 9:02
77
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Test parameterization in xUnit.net similar to NUnit
Are there any means in xUnit.net framework similar to the following features of NUnit?
6 Answers
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ContextLoaderListener or not?
... But what is the advantage of this configuration? And what do you mean by "the other way around"?
– Ralph
Nov 28 '13 at 9:28
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Difference between '..' (double-dot) and '…' (triple-dot) in range generation?
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I think it's really bizarre that more dots means the range represents fewer values. I guess it's just that .. is more common and thus less is preferred for it?
– Andrew Marshall
Mar 13 '12 at 19:43
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Random record in ActiveRecord
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I haven't found an ideal way to do this without at least two queries.
The following uses a randomly generated number (up to the current record count) as an offset.
offset = rand(Model.count)
# Rails 4
rand_record = Model.offset(offset).first...