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What is an optional value in Swift?
...or the image variable. In this case you would have to make it optional. It starts as nil and when the image is retrieved, the optional gets a value.
Using an optional reveals the programmers intent. Compared to Objective-C, where any object could be nil, Swift needs you to be clear about when a valu...
How to select/get drop down option in Selenium 2
...ropdown until I commented out this line: //select.deselectAll(); Then it started working. Your mileage may vary.
– gorbysbm
May 1 '14 at 21:56
1
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Does PHP have threading?
...cho $!';
pclose(popen($cmd, 'r'));
for windows you may use this:
$cmd = 'start "processname" /MIN /belownormal cmd /c "script.php 2>&1"';
pclose(popen($cmd, 'r'));
do it yourself with a fork: php also provides the possibility to use forking through the function pcntl_fork(). A good tutor...
Simple way to convert datarow array to datatable
...y has rows in it as this replace whatever already there. If table empty to start with it's fine.
– Franck
Mar 18 '14 at 12:19
5
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hexadecimal string to byte array in python
..., 69, 43776)
As I specified little endian (using the '<' char) at the start of the format string the function returned the decimal equivalent.
0x12 = 18
0x45 = 69
0xAB00 = 43776
B is equal to one byte (8 bit) unsigned
H is equal to two bytes (16 bit) unsigned
More available characters and...
Align items in a stack panel?
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This works perfectly for me. Just put the button first since you're starting on the right. If FlowDirection becomes a problem just add a StackPanel around it and specify FlowDirection="LeftToRight" for that portion. Or simply specify FlowDirection="LeftToRight" for the relevant control.
<...
How to print a percentage value in python?
... Indeed. I wonder why Guido didn't implement real division from the very start... Rounding 1/3 to 0 should be explicit after all...
– Tobias Kienzler
Jul 17 '13 at 8:53
1
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Eclipse does not highlight matching variables
... Thanks! In eclipse Juno (under ubuntu 12.04) the settings did not start working until I restarted eclipse.
– arun
Jun 13 '13 at 15:50
1
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Why won't my PHP app send a 404 error?
...! Here's a page to display for 404s.
The problem is, once the web server starts processing the PHP page, it's already passed the point where it would handle a 404
User: Hey, do you have anything for me at this URI webserver?
Webserver: Yes, I do, it's a PHP page. It'll tell you what the respons...
Branch from a previous commit using Git
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to start a branch from <sha1-of-commit> run git checkout -b <name-of-branch> <sha1-of-commit> but if the branch already exists git checkout -B <name-of-branch> <sha1-of-commit>
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