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Best way to reverse a string
...hars in C# are unicode characters, not bytes. Xor may be faster, but apart from being far less readable, that may even be what Array.Reverse() uses internally.
– Nick Johnson
Oct 23 '08 at 13:18
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Git submodule inside of a submodule (nested submodules)
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As Sridhar comments below, from Git1.6.5+, git clone --recursive is now the official alternative, described in:
"git clone --submodule"
"Retrospectively add --recursive to a git repo"
(with the alias $ git config --global alias.cloner = 'clone --rec...
GridView VS GridLayout in Android Apps
...splays items in two-dimensional scrolling grid. The items in the grid come from the ListAdapter associated with this view.
This is what you'd want to use (keep using). Because a GridView gets its data from a ListAdapter, the only data loaded in memory will be the one displayed on screen.
GridViews...
how to show progress bar(circle) in an activity having a listview before loading the listview with d
... @ShajeelAfzal: Yes. It is a style. You will find it the SDK from any of the ICS APIs. Search for this XML: progress_medium_holo.xml and also copy the relevant images in their respective drawable folders.
– Siddharth Lele
Mar 24 '13 at 6:01
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How to do a simple file search in cmd
I want to quickly search for a file given its name or part of its name, from the windows command line (not power shell). This is similar to opening explorer and using the search box at the top.
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Possible to access the index in a Hash each loop?
...of Enumerable. But too bad that RDoc can't cross reference each_with_index from Hash.html.
– Upgradingdave
Jan 18 '10 at 2:50
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BigDecimal equals() versus compareTo()
...mal if you don't read the JavaDoc carefully. :) - We got some strange bugs from this until we realized the difference.
– Thomas
Jul 22 '11 at 8:04
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Prevent body scrolling but allow overlay scrolling
...ent) {event.preventDefault();}, false ); which SADLY disables all elements from being scrollable, too. Have not found any solution so far (without extra plugIns)
– Garavani
Sep 4 '14 at 7:12
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Android onCreate or onStartCommand for starting service
...hings in this method that are needed each time a client requests something from your service. This depends a lot on what your service does and how it communicates with the clients (and vice-versa).
If you don't implement onStartCommand() then you won't be able to get any information from the Intent...
Get the first N elements of an array?
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Use array_slice()
This is an example from the PHP manual: array_slice
$input = array("a", "b", "c", "d", "e");
$output = array_slice($input, 0, 3); // returns "a", "b", and "c"
There is only a small issue
If the array indices are meaningful to you, remembe...