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What is “callback hell” and how and why does RX solve it?
Can someone give a clear definition together with a simple example that explains what is a "callback hell" for someone who does not know JavaScript and node.js ?
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How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
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[EDIT: Warning: The entire ensuing discussion will be possibly outmoded or at least heavily mitigated by iOS 8, which may no longer make the mistake of triggering layout at the time that a view transform is applied.]
Autolayout...
How to get JSON response from http.Get
...on the reader directly. Here's a nice function that gets a url and decodes its response onto a target structure.
var myClient = &http.Client{Timeout: 10 * time.Second}
func getJson(url string, target interface{}) error {
r, err := myClient.Get(url)
if err != nil {
return err
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Java 8 Streams: multiple filters vs. complex condition
Sometimes you want to filter a Stream with more than one condition:
4 Answers
4
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What is the difference between a port and a socket?
...oftware engineers in my organisation. I'm interested in the broadest definition.
35 Answers
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What’s the difference between ScalaTest and Scala Specs unit test frameworks?
Both are BDD (Behavior Driven Development) capable unit test frameworks for Scala written in Scala. And Specs is built upon may also involve the ScalaTest framework. But what does Specs offer ScalaTest doesn't? What are the differences?
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What is “entropy and information gain”?
I am reading this book ( NLTK ) and it is confusing. Entropy is defined as :
7 Answers
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Big-O for Eight Year Olds? [duplicate]
... operation on a data structure, I understand that the number of operations it has to perform won't grow because there are more items. And an O(n) operation would mean that you would perform a set of operations on each element. Could somebody fill in the blanks here?
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Error-Handling in Swift-Language
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Swift 2 & 3
Things have changed a bit in Swift 2, as there is a new error-handling mechanism, that is somewhat more similar to exceptions but different in detail.
1. Indicating error possibility
If function/method wants to indicate that it may throw an error...
One DbContext per web request… why?
I have been reading a lot of articles explaining how to set up Entity Framework's DbContext so that only one is created and used per HTTP web request using various DI frameworks.
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