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How can I convert a hex string to a byte array? [duplicate]
...HexVal(char hex) {
int val = (int)hex;
//For uppercase A-F letters:
//return val - (val < 58 ? 48 : 55);
//For lowercase a-f letters:
//return val - (val < 58 ? 48 : 87);
//Or the two combined, but a bit slower:
return val - (val < 58 ...
Intellij shortcut to convert code to upper or lower case?
...e sometimes pressing CTRL+SHIFT+U just replaces the selected text with the letter U.... sometimes it works, but usually it just does the replacing.
– Trenton
Jul 31 '14 at 16:15
31...
Can I load a UIImage from a URL?
...one-4s-wallpapers-mobile-backgrounds-dark_2466f886de3472ef1fa968033f1da3e1_raw_1087fae1932cec8837695934b7eb1250_raw.jpg");
var err: NSError?
var imageData :NSData = NSData.dataWithContentsOfURL(url,options: NSDataReadingOptions.DataReadingMappedIfSafe, error: &err)
var bgImage = UIIm...
Python csv string to array
...
from io import StringIO
import csv
scsv = """text,with,Polish,non-Latin,letters
1,2,3,4,5,6
a,b,c,d,e,f
gęś,zółty,wąż,idzie,wąską,dróżką,
"""
f = StringIO(scsv)
reader = csv.reader(f, delimiter=',')
for row in reader:
print('\t'.join(row))
simpler version with split() on newline...
Convert audio files to mp3 using ffmpeg
... input streams this option only makes sense for audio grabbing devices and raw demuxers and is mapped to the corresponding demuxer options.
-ac - Set the number of audio channels. For output streams it is set by default to the number of input audio channels. For input streams this option only ma...
Is it possible to force Excel recognize UTF-8 CSV files automatically?
...l levels. But opening such CSV files (containing e.g. diacritics, cyrillic letters, Greek letters) in Excel does not achieve the expected results showing something like Г„/Г¤, Г–/Г¶ . And I don't know how to force Excel understand that the open CSV file is encoded in UTF-8. I also tried s...
What does %w(array) mean?
...ing, the % may create other types of object. As with strings, an uppercase letter allows interpolation and escaped characters while a lowercase letter disables them.
These are the types of percent strings in ruby:
...
%w: Array of Strings
...
How to split text without spaces into list of words?
... refine what exactly is meant by "longest word": is it better to have a 20-letter word and ten 3-letter words, or is it better to have five 10-letter words? Once you settle on a precise definition, you just have to change the line defining wordcost to reflect the intended meaning.)
The idea
The be...
Can I define a class name on paragraph using Markdown?
...
Raw HTML is actually perfectly valid in markdown. For instance:
Normal *markdown* paragraph.
<p class="myclass">This paragraph has a class "myclass"</p>
Just make sure the HTML is not inside a code block.
...
Difference between single quotes and double quotes in Javascript [duplicate]
...
Only if you're writing RAW JSON. If you're writing a Javascript object, {key: 'value'} works exactly the same as {"key": "value"} and is a lot quicker to type.
– Orwellophile
Jun 16 '15 at 12:21
...