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Android accelerometer accuracy (Inertial navigation)
...just thinking out loud, and I haven't played with an android accelerometer API yet, so bear with me.
First of all, traditionally, to get navigation from accelerometers you would need a 6-axis accelerometer. You need accelerations in X, Y, and Z, but also rotations Xr, Yr, and Zr. Without the rotati...
Strip HTML from Text JavaScript
...of Javascript. Therefore we didn't add bulk, we took advantage of existing API code...
– Mark
Mar 14 '12 at 16:31
35
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PHP “php://input” vs $_POST
...ay or object to a urlencoded string bothers many developers (even with new APIs like Form Data). They would much rather just be able to send JSON, and it would be more efficient for the client code to do so.
Remember (wink, wink), the average web developer does not learn to use the XmlHttpRequest o...
Using getopts to process long and short command line options
...uspect that when FreeBSD mention GNU getopt, they mean the GNU getopt(3) C API.
– Stephane Chazelas
Jun 24 '13 at 6:39
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Validating with an XML schema in Python
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lxml provides etree.DTD
from the tests on http://lxml.de/api/lxml.tests.test_dtd-pysrc.html
...
root = etree.XML(_bytes("<b/>"))
dtd = etree.DTD(BytesIO("<!ELEMENT b EMPTY>"))
self.assert_(dtd.validate(root))
...
How to detect when cancel is clicked on file input?
...s, if offer no guarantees on the state of the browser.
As it stands, this API is fundamentally unusable for mobile devices, and I think a relatively simple browser change could make this infinitely easier for web developers *steps off soap box*.
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How do you make a deep copy of an object?
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You can use a library that has a simple API, and performs relatively fast cloning with reflection (should be faster than serialization methods).
Cloner cloner = new Cloner();
MyClass clone = cloner.deepClone(o);
// clone is a deep-clone of o
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How do I specify new lines on Python, when writing on files?
...'s actually called linesep.)
Note: when writing to files using the Python API, do not use the os.linesep. Just use \n; Python automatically translates that to the proper newline character for your platform.
share
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How to send a JSON object over Request with Android?
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HttpPost is deprecated by Android Api Level 22. So, Use HttpUrlConnection for further.
public static String makeRequest(String uri, String json) {
HttpURLConnection urlConnection;
String url;
String data = json;
String result = null;
try ...
Import package.* vs import package.SpecificType [duplicate]
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Take a look at the java API, and you'll see many classes and interfaces with the same name in different packages.
For example:
java.lang.reflect.Array
java.sql.Array
So, if you import java.lang.reflect.* and java.sql.* you'll have a collision on...