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Use JNI instead of JNA to call native code?
...droid/arm emulators (with the SDK), and probably even on actual devices (untested)."
– kizzx2
Jan 24 '12 at 3:19
1
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When is CRC more appropriate to use than MD5/SHA1?
...ox" hash function, and do not use it as a general purpose hash. Be sure to test each application of it for suitability.
UPDATE
It seems the site is down. The internet archive has a copy though.
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How do I add a simple jQuery script to WordPress?
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After much searching, I finally found something that works with the latest WordPress. Here are the steps to follow:
Find your theme's directory, create a folder in the directory for your custom js (custom_js in this example).
Put your custom jQuery in a .js file in this directory (jquery_test...
Pandas conditional creation of a series/dataframe column
...f['color'] = ['red' if x == 'Z' else 'green' for x in df['Set']]
%timeit tests:
import pandas as pd
import numpy as np
df = pd.DataFrame({'Type':list('ABBC'), 'Set':list('ZZXY')})
%timeit df['color'] = ['red' if x == 'Z' else 'green' for x in df['Set']]
%timeit df['color'] = np.where(df['Set']==...
Android Endless List
..., adding items when the user scrolls to the end of the list.
public class Test extends ListActivity implements OnScrollListener {
Aleph0 adapter = new Aleph0();
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setListAdapter(adapter)...
Web workers without a separate Javascript file?
... BlobBuiler is now deprecated. Use Blob instead. Currently supported in latest Firefox/WebKit/Opera and IE10, see compatibility tables for older browsers.
– Félix Saparelli
Jan 19 '13 at 9:42
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How can I split a text into sentences?
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tokenizer = nltk.data.load('tokenizers/punkt/english.pickle')
fp = open("test.txt")
data = fp.read()
print '\n-----\n'.join(tokenizer.tokenize(data))
(I haven't tried it!)
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Sound effects in JavaScript / HTML5
...ou should use
(new Audio()).canPlayType("audio/ogg; codecs=vorbis")
to test whether the browser supports Ogg Vorbis.
If you're writing a game or a music app (more than just a player), you'll want to use more advanced Web Audio API, which is now supported by most browsers.
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Rank function in MySQL
...ows the variable initialization without requiring a separate SET command.
Test case:
CREATE TABLE person (id int, first_name varchar(20), age int, gender char(1));
INSERT INTO person VALUES (1, 'Bob', 25, 'M');
INSERT INTO person VALUES (2, 'Jane', 20, 'F');
INSERT INTO person VALUES (3, 'Jack', ...
Using “like” wildcard in prepared statement
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@BalusC this applies to MSSQL, Postgres, and MySQL in my testing. The String being made into a parameter is itself interpreted as a mix of data and control instructions. SQL concatenation occurs before it is interpreted and preserves the vulnerability. The IEEE Center for Secure De...