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The selected run destination is not valid for this action
...base SDK was already set to iOS. XCode crashed just prior to this problem starting so I think that may have had something to do with it.
– kennbrodhagen
Sep 6 '11 at 0:49
add...
Java: How to set Precision for double value? [duplicate]
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This answer doesn't start from a double value, which rules it out of court immediately, and it doesn't deliver a correct result in all cases, because it can't. It's impossible.
– Marquis of Lorne
Mar 1 '19 ...
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...
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...
Using ls to list directories and their total sizes
...$0); print $0} }'
Awk code explained:
if($1 == "total") { // Set X when start of ls is detected
X = 1
} else if (!X) { // Until X is set, collect the sizes from `du`
SIZES[$2] = $1
} else {
// Replace the size on current current line (with alignment)
sub($5 "[ ]*", sprintf("%-7s ", SIZES...
How to retry after exception?
I have a loop starting with for i in range(0, 100) . Normally it runs correctly, but sometimes it fails due to network conditions. Currently I have it set so that on failure, it will continue in the except clause (continue on to the next number for i ).
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javac : command not found
...Unix type systems (is CentOS some kind of Unix?) you have to specify ./ to start something in the current directory. Feel free to reedit, if my edits get approved.
– user unknown
Mar 23 '11 at 15:53
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php is null or empty?
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@Robert: A string not starting with digits is converted to 0 when cast to a string: codepad.org/qi40SG3E. So (int)"php" == 0.
– Felix Kling
Nov 27 '13 at 21:58
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How do you redirect HTTPS to HTTP?
...would still see a big red warning because of invalid certificate. Once you start to use https, you are basically stuck with it. Be prepared to pay for it throughout the rest of your life. If you stop paying, people who bookmarked the https links will not be able to come through.
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How to float 3 divs side by side using CSS?
... are placed side by side and not in the next lines(as block level elements start and end with a line break). Does float have some other affect on it also?
– Ashwin
Mar 31 '13 at 1:58
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