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Difference between abstraction and encapsulation?
What is the precise difference between encapsulation and abstraction?
39 Answers
39
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Swift Beta performance: sorting arrays
I was implementing an algorithm in Swift Beta and noticed that the performance was very poor. After digging deeper I realized that one of the bottlenecks was something as simple as sorting arrays. The relevant part is here:
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Key hash for Android-Facebook app
I'm working on an Android app, in which I want to integrate a Facebook
posting feature. I downloaded the Facebook-Android SDK, and I got
the readme.md (text file) in there, in which it is mentioned to generate
the key hash for Android. How do I generate it?
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Django migration strategy for renaming a model and relationship fields
...ome errors if you don't update the names where it's imported e.g. admin.py and even older migration files (!).
Update: As ceasaro mentions, newer versions of Django are usually able to detect and ask if a model is renamed. So try manage.py makemigrations first and then check the migration file.
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Can anyone explain IEnumerable and IEnumerator to me? [closed]
Can anyone explain IEnumerable and IEnumerator to me?
16 Answers
16
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What's the point of NSAssert, actually?
...Is that the reason why to use NSAssert? Or what else is the benefit of it? And is it right to put an NSAssert just above any assumption I make in code, like a function that should never receive a -1 as param but may a -0.9 or -1.1?
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Checkout another branch when there are uncommitted changes on the current branch
... Git version 2.13, to fix up some problems with the arguments to git stash and allow for new options. Both do the same thing, when used in the basic ways.
You can stop reading here, if you like!
If Git won't let you switch, you already have a remedy: use git stash or git commit; or, if your chan...
user authentication libraries for node.js?
...an do password authentication for a user (using a custom backend auth DB), and associate that user with a session.
15 Answe...
MySQL pagination without double-querying?
...dering if there was a way to get the number of results from a MySQL query, and at the same time limit the results.
9 Answer...
What is aria-label and how should I use it?
...how will he hear close? What can I do in my browser (chrome) to hear this? And how can a blind person select this button if he have no idea where it is?
– Salvador Dali
Feb 26 '14 at 11:57
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