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How to generate all permutations of a list?
....permutations([1,2,3], r=2), which will generate all possible permutations selecting 2 elements: [(1, 2), (1, 3), (2, 1), (2, 3), (3, 1), (3, 2)]
– toto_tico
Aug 24 '17 at 8:49
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Changing UIButton text
...set up to four different strings for the four states (normal, highlighted, selected, disabled).
Because of this feature, setting the titleLabel's text directly won't persist, and will be reset by the button when it lays out its subviews.
This is what you have to do to change the title text for a...
File Upload without Form
... this tutorial, here a very basic way to do that:
$('your_trigger_element_selector').on('click', function(){
var data = new FormData();
data.append('input_file_name', $('your_file_input_selector').prop('files')[0]);
// append other variables to data if you want: data.append('field_n...
How to recursively delete an entire directory with PowerShell 2.0?
... it useful to see what I'm about to delete by running
Get-Tree some_dir | select fullname
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Center a popup window on screen?
...t window.open function on the center of screen variable to the currently selected screen resolution ?
18 Answers
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Adding images or videos to iPhone Simulator
...ing the simulator.
Identify your simulator by going to xCode->Devices, selecting your simulator, and checking the Identifier value.
Go to
~/Library/Developer/CoreSimulator/Devices/[Simulator Identifier]/data/Media/DCIM/100APPLE
and add IMG_nnnn.THM and IMG_nnnn.JPG. You will then need to res...
“Connection for controluser as defined in your configuration failed” with phpMyAdmin in XAMPP
... a file called create_tables.sql. Open it in a text editor.
In phpMyAdmin, select the phpmyadmin database and click on the "SQL" tab.
Copy/paste the entire text from create_tables.sql into the text box, and run the query.
Open the config.inc.php file in the phpMyAdmin install directory, and add the ...
How stable is the git plugin for eclipse?
...clipse incubation. You can install it using the Eclipse update manager.
Select Help -> Install New Software...
You probably do not have the JGit update URL in your list of sites so in the 'Work with:' field enter this url: http://www.jgit.org/updates
Click Add...
You should now see Eclipse Git...
Working copy XXX locked and cleanup failed in SVN
...toiseSVN then Press Clean up...
Clean up dialog would appear automatically
Select Clean up working copy status, Break locks, Fix time stamps, Vacuum pristine copies, Refresh shell overlays, Include externals
Pres OK
You did your job successfully.
Check the screen shots for your reference.
First ...
理解和配置 Linux 下的 OOM Killer - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...当系统内存不足的时候，out_of_memory() 被触发，然后调用 select_bad_process() 选择一个 “bad” 进程杀掉，如何判断和选择一个 “bad” 进程呢，总不能随机选吧？挑选的过程由 oom_badness() 决定，挑选的算法和想法都很简单很朴实：最...