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How do I call Objective-C code from Swift?
...documentation, this Objective-C:
UITableView *myTableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStyleGrouped];
turns into this Swift code:
let myTableView: UITableView = UITableView(frame: CGRectZero, style: .Grouped)
Xcode also does this translation on the fly — y...
How can I shuffle the lines of a text file on the Unix command line or in a shell script?
...ort -R (not a true shuffle if there are duplicate input lines)
10.661s - allocating more memory doesn't seem to make a difference
Scala
24.229s
bash loops + sort
32.593s
Conclusions:
Use shuf, if you can - it's the fastest by far.
Ruby does well, followed by Perl.
Python is noticeably s...
Factory Pattern. When to use factory methods?
...l object you are trying to create relies on several other objects. E.g, in PHP: Suppose you have a House object, which in turn has a Kitchen and a LivingRoom object, and the LivingRoom object has a TV object inside as well.
The simplest method to achieve this is having each object create their chi...
Best way to reverse a string
... (input == null)
throw new ArgumentNullException("input");
// allocate a buffer to hold the output
char[] output = new char[input.Length];
for (int outputIndex = 0, inputIndex = input.Length - 1; outputIndex < input.Length; outputIndex++, inputIndex--)
{
// check ...
Calendar Recurring/Repeating Events - Best Storage Method
...
Storing "Simple" Repeating Patterns
For my PHP/MySQL based calendar, I wanted to store repeating/recurring event information as efficiently as possibly. I didn't want to have a large number of rows, and I wanted to easily lookup all events that would take place on a s...
Select something that has more/less than x character
...Oracle documentation:
http://www.techonthenet.com/oracle/functions/length.php
And here is the mySQL Documentation of Length(string):
http://dev.mysql.com/doc/refman/5.1/en/string-functions.html#function_length
For PostgreSQL, you can use length(string) or char_length(string). Here is the Postgre...
Passing enum or object through an intent (the best solution)
...g, Parcelable).
UPDATE: Please note wreckgar's comment that enum.values() allocates a new array at each call.
UPDATE: Android Studio features a live template ParcelableEnum that implements this solution. (On Windows, use Ctrl+J)
...
Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
...mits etc.
Seccomp is going to be a bit difficult, as the code cannot even allocate memory.
Selinux is the other option, but I think it might be more work than a container.
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Detect Click into Iframe using JavaScript
....blur( function() {
if( overiFrame != -1 )
$.post('log.php', {id:overiFrame}); /* example, do your stats here */
});
});
Very elegant solution with a minor downside: if a user presses ALT-F4 when hovering the mouse over an iFrame it will log it as a click. This only happene...
FFmpeg C API documentation/tutorial [closed]
...ffmpeg format or codec, take a look here:
http://wiki.multimedia.cx/index.php?title=Category:FFmpeg_Tutorials
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