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How can I save an image to the camera roll?
I am new to Xcode (using 4.3) and am not sure how to save an image to the device's camera roll. All that I have done so far is set up an IBAction for the button to save the image. What library method or function can I use to save an image to the user's camera roll?
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Extracting the last n characters from a ruby string
...a one liner, you can put a number greater than the size of the string:
"123".split(//).last(5).to_s
For ruby 1.9+
"123".split(//).last(5).join("").to_s
For ruby 2.0+, join returns a string
"123".split(//).last(5).join
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How to get jQuery dropdown value onchange event
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answered Nov 12 '13 at 7:00
power_scriptorpower_scriptor
2,94411 gold badge1212 silver badges1616 bronze badges
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An efficient way to transpose a file in Bash
...,j];
}
print str
}
}' file
output
$ more file
0 1 2
3 4 5
6 7 8
9 10 11
$ ./shell.sh
0 3 6 9
1 4 7 10
2 5 8 11
Performance against Perl solution by Jonathan on a 10000 lines file
$ head -5 file
1 0 1 2
2 3 4 5
3 6 7 8
4 9 10 11
1 0 1 2
$ wc -l < file
10000
$ time per...
What are Vertex Array Objects?
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Daniel Que
1,63433 gold badges1414 silver badges2929 bronze badges
answered Aug 6 '12 at 1:24
HughHugh
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What is the “reactor” in Maven?
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edited Feb 28 '15 at 20:36
user152468
2,59944 gold badges1818 silver badges4646 bronze badges
answered...
What is the difference between `git fetch origin` and `git remote update origin`?
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133
It makes no difference when used like this.
remote update is a very high-level command - it su...
How to escape quote marks in Exec Command in MSBuild
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193
Use &quot; to encode the double quotes that you want net to see inside the Command attribute...
Pandoc markdown page break
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136
It looks like pandoc markdown uses standard LaTeX tags for this purpose:
\newpage and \pagebre...
How can I see the current value of my $PATH variable on OS X?
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answered Jan 31 '13 at 1:47
HeatfanJohnHeatfanJohn
5,98622 gold badges2929 silver badges4141 bronze badges
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