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Check empty string in Swift?
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@teradyl By "didn't work," do you mean you're getting an error, having issues with autocomplete, or something else? It should work unless something changed that I'm not aware of, but autocomplete won't always pick the right version.
– John Montgomery
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Best ways to teach a beginner to program? [closed]
...es the dual purpose of teaching the debugging tools and teaching how to ID errors without tools.
Once, or if, the project gets functional you can use it to introduce refactoring tools. Its good if you can then expand the project with some simple features which you never planned for. This usually me...
Should you choose the MONEY or DECIMAL(x,y) datatypes in SQL Server?
...it does have a precision of money. However, you still end up with rounding errors that can accumulate over time. The decimal type doesn't use binary arithmetic: it guarantees it gets the same base 10 results you would from doing it on paper.
– Joel Coehoorn
Fe...
How can I recall the argument of the previous bash command?
...provide a little more detail (eg. ubuntu command line, cygwin for windows? error message? previous line?)
– Robert Gowland
Feb 14 '14 at 14:59
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Ternary operator (?:) in Bash
...ug: if op1 has a nonzero exit status, op2 silently becomes the result; the error will also not be caught in -e mode. So, that expression is only safe to use if op1 can never fail (e.g., :, true if a builtin, or variable assignment without any operations that can fail (like division and OS calls)).
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Returning from a finally block in Java
...----------\n"
}
String execute(boolean returnInFinally, boolean throwError) {
String thread = Thread.currentThread().getName()
println "...execute(returnInFinally: $returnInFinally, throwError: $throwError) - thread: $thread"
runningThreads.add(thread)
try {
if ...
Get table column names in MySQL?
... return $output;
}
catch(PDOException $pe) {
trigger_error('Could not connect to MySQL database. ' . $pe->getMessage() , E_USER_ERROR);
}
}
The output will be an array:
Array (
[0] => id
[1] => name
[2] => email
[3] => shoe_size
[4] => likes
... )
Sor...
Unable to load Private Key. (PEM routines:PEM_read_bio:no start line:pem_lib.c:648:Expecting: ANY PR
... Oh my good God! THANK YOU! I would've never figured that out by trial and error, fixed the issue for me!
– Mikael Dyreborg Hansen
Apr 15 at 12:48
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Push Notifications in Android Platform
...nResult.SUCCESS) {
if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
GooglePlayServicesUtil.getErrorDialog(resultCode, this,
PLAY_SERVICES_RESOLUTION_REQUEST).show();
} else {
Log.d(TAG, "This device is no...
Is it good practice to NULL a pointer after deleting it?
...ce of code. While a segfault is usually better than silently ignoring the error, the segfault isn't guaranteed in this case, and it's of questionable utility.
– Adam Rosenfield
Dec 18 '09 at 23:10
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