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Transitions on the CSS display property
...ions or more, and visibility is what comes handy this time.
div {
border: 1px solid #eee;
}
div > ul {
visibility: hidden;
opacity: 0;
transition: visibility 0s, opacity 0.5s linear;
}
div:hover > ul {
visibility: visible;
opacity: 1;
}
<div>
<ul>
...
How do I enable TODO/FIXME/XXX task tags in Eclipse?
... settings are necessary to choose which tags you are interested in, but in order to display these tags in a list, you also need to select the right Eclipse perspective. I finally discovered that the "Markers" tab containing the "Task" list is only available under the "Java EE" perspective... Hope th...
How to Define Callbacks in Android?
...allback. a Handler.Callback can be passed to the constructor of Handler in order to avoid extending Handler directly. thus, to execute some code via callback from the current thread:
Message message = new Message();
<set data to be passed to callback - eg message.obj, message.arg1 etc - here>...
Find rows with multiple duplicate fields with Active Record, Rails & Postgres
...t([:first,:email]).group(:first,:email).having("count(*) > 1").count in order to work.
– Rafael Oliveira
Oct 6 '14 at 22:27
4
...
Update R using RStudio
... the install.packages() function or the update.packages(function).
So, in order to install R,
go to http://www.r-project.org,
click on 'CRAN',
then choose the CRAN site that you like. I like Kansas: http://rweb.quant.ku.edu/cran/.
click on 'Download R for XXX' [where XXX is your operating syste...
How to add dividers and spaces between items in RecyclerView?
... visual grouping boundaries and more.
All ItemDecorations are drawn in the order they were added, before the item views (in onDraw()) and after the items (in onDrawOver(Canvas, RecyclerView, RecyclerView.State).
Vertical spacing ItemDecoration
Extend ItemDecoration, add custom constructor which tak...
How to serialize an object to XML without getting xmlns=“…”?
...ally written as UTF-8. System.Xml.XmlException: 'There is no Unicode byte order mark. Cannot switch to Unicode.'
– Tyler StandishMan
Feb 28 at 16:52
...
How do I iterate through each element in an n-dimensional matrix in MATLAB?
... 4 9 2
A(2,3)
ans =
7
A(8)
ans =
7
We can see the order the elements are stored in memory by unrolling the array into a vector.
A(:)
ans =
8
3
4
1
5
9
6
7
2
As you can see, the 8th element is the number 7. In fact, the function...
RegEx to make sure that the string contains at least one lower case char, upper case char, digit and
...
@Sharlike, I don't know how to rephrase it in order to make it easier to understand. Especially in these small comment-boxes. I recommend you read this: regular-expressions.info/lookaround.html and if you still have question, simply post a question of your own. Good luck...
What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
...ort the back button without reloading the entire page from the server.
In order to support bookmarking and the back button, you need to change the URL. However, if you change the page portion (with something like window.location = 'http://raganwald.com';) to a different URL or without specifying an...