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What is the difference between Reader and InputStream?
... is designed for character streams. If the information you are reading is all text, then the Reader will take care of the character decoding for you and give you unicode characters from the raw input stream. If you are reading any type of text, this is the stream to use.
You can wrap an InputStre...
How to get a Fragment to remove itself, i.e. its equivalent of finish()?
...C D) which chain onto one another, D has a button 'OK' which when pressed calls finish which then bubbles up through onActivityResult() to additionally destroy C and B.
...
Play an audio file using jQuery when a button is clicked
...ing(load when you need it) the sound is the best approach if its size is small. You can create the audio element dynamically, when its loaded you can start it with .play() and pause it with .pause().
Things we used
We will use canplay event to detect our file is ready to be played.
There is no ....
Best way to get child nodes
...ference between childNodes and children, which is that childNodes contains all nodes, including text nodes consisting entirely of whitespace, while children is a collection of just the child nodes that are elements. That's really all there is to it.
There is nothing unpredictable about either colle...
Rendering JSON in controller
...
You'll normally be returning JSON either because:
A) You are building part / all of your application as a Single Page Application (SPA) and you need your client-side JavaScript to be able to pull in additional data without fully reload...
What is x after “x = x++”?
...
I don't think this is all that useful without further explanation. For instance, it's not true that x = ++x; is also equivalent to int tmp = x; ++x; x = tmp;, so by what logic can we deduce that your answer is correct (which it is)?
...
Javascript foreach loop on associative array object
...ion(key, index) {
console.log(this[key]);
}, arr_jq_TabContents);
The callback function passed to .forEach() is called with each key and the key's index in the array returned by Object.keys(). It's also passed the array through which the function is iterating, but that array is not really useful...
How should you build your database from source control?
... production environments in deployment scripts?
Use templates, so that actually you would produce different set of scripts for each environment (ex. references to external systems, linked databases, etc)
How do you test that the deployment scripts will work as effectively against production as they ...
How can I convert immutable.Map to mutable.Map in Scala?
...table.Map(1->"one",2->"Two")
val n = collection.mutable.Map(m.toSeq: _*)
This works because a Map can also be viewed as a sequence of Pairs.
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Split list into multiple lists with fixed number of elements
...st[List[X]] =
if (xs.size <= n) xs :: Nil
else (xs.splitAt(n)._1) :: split(n,xs.splitAt(n)._2)
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