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How to access the last value in a vector?
...ead and tail (from utils) work not only on vectors but also on data frames etc., and also can return data "without first/last n elements", e.g.
but.last <- function(x) { head(x, n = -1) }
(Note that you have to use head for this, instead of tail.)
...
Handling a colon in an element ID in a CSS selector [duplicate]
... browsers: Including IE6+ (and possibly earlier?), Firefox, Chrome, Opera, etc. It's part of the CSS2 standard.
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What is Delegate? [closed]
...egate), but the power of delegates is that you can use them as parameters, etc. when you want a method to be able to have different behavior. There are many other things you can use them for also, this is just a simple example. Hope that helps.
– dcp
Jan 11 '1...
Reuse a parameter in String.format?
...gument list. The first argument is referenced by "1$", the second by "2$", etc.
String.format("%1$s %1$s %1$s %1$s %1$s %1$s", hello);
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What is bootstrapping?
...of initial peers or a hard-coded tracker URL that supplies the peer list
etc.
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How is Python's List Implemented?
...size;
/* Vector of pointers to list elements. list[0] is ob_item[0], etc. */
PyObject **ob_item;
/* ob_item contains space for 'allocated' elements. The number
* currently in use is ob_size.
* Invariants:
* 0 <= ob_size <= allocated
* len(list) == ob...
How to open standard Google Map application from my application?
...on there. I would love a baloon so the user can click it to get directions etc.
– Mike
Aug 26 '13 at 22:38
5
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How do I center floated elements?
...gination.
Strengths:
cross-browser for any elements (blocks, list-items etc.)
simplicity
Weaknesses:
it works only when all floating elements are in one line (which is usually ok for menus but not for galleries).
@arnaud576875 Using inline-block elements will work great (cross-browser) in ...
How To fix white screen on app Start up?
....xml and avoid to customise in your onCreate as ActionBar.setIcon/setTitle/etc.
See also the Documentation on Performance Tips by Google.
Use Trace View and Hierarchy Viewer to see the time to display your Views: Android Performance Optimization / Performance Tuning On Android
Use AsyncTask t...
node.js database [closed]
... be transactional, and have live replication to remote hosting facilities, etc. Then maybe look at something like postgresql. It wouldn't mirror as well, but the node.js driver works pretty well and if you aren't deathly afraid of sql it gets what you want in/out pretty easily.
As for my own opin...