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Android EditText delete(backspace) key event
... Apr 17 '18 at 23:53
The Hungry Androider
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answered Feb 3 '11 at 14:25
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Change UICollectionViewCell size on different device orientations
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1) You could maintain and swap out multiple layout objects, but there's a simpler way. Just add the following to your UICollectionViewController subclass and adjust the sizes as required:
- (CGSize)collectionView:(UICollectionView *)collectionVie...
Why is null an object and what's the difference between null and undefined?
...n short; undefined is where no notion of the thing exists; it has no type, and it's never been referenced before in that scope; null is where the thing is known to exist, but it's not known what the value is.
One thing to remember is that null is not, conceptually, the same as false or "" or such, e...
How can I determine the type of an HTML element in JavaScript?
...g(elt.nodeName);
Note that nodeName returns the element name capitalized and without the angle brackets, which means that if you want to check if an element is an <div> element you could do it as follows:
elt.nodeName == "DIV"
While this would not give you the expected results:
elt.nodeN...
What are file descriptors, explained in simple terms?
... open a file, the operating system creates an entry to represent that file and store the information about that opened file. So if there are 100 files opened in your OS then there will be 100 entries in OS (somewhere in kernel). These entries are represented by integers like (...100, 101, 102....). ...
Android update activity UI from service
...tivity UI to show that info.
I did find https://github.com/commonsguy/cw-andtutorials/tree/master/18-LocalService/ this example. Is that a good approch ? Any other examples?
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Factors in R: more than an annoyance?
... data types in R is factors. In my experience factors are basically a pain and I never use them. I always convert to characters. I feel oddly like I'm missing something.
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XML attribute vs XML element
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I read through some of the answers and something that wasn't stressed enough form my experience is that if you data in an "attribute" and suddenly has a > or < you XML document will break I think there are five ascii chars (>, <, &, ?,") that w...
Specify width in *characters*
...eight of an x. More generally speaking, these are the heights of uppercase and lowercase letters.
Width is a totally different issue....
Change your example above to
<div>
<span>1</span> 3 5 7 9 1 3 5 7 9 1
</div>
and you will notice width and height of the span are...
What is the use of “assert” in Python?
I have been reading some source code and in several places I have seen the usage of assert .
21 Answers
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