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Why a function checking if a string is empty always returns true? [closed]
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PHP have a built in function called empty()
the test is done by typing
if(empty($string)){...}
Reference php.net : php empty
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Is there any way to call a function periodically in JavaScript?
...ion, no matter the parameter. It is just an example, and both methods are by definition correct.
– zombat
Aug 3 '09 at 22:26
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Django datetime issues (default=datetime.now())
...the second example and what you currently have is the lack of parentheses. By passing datetime.now without the parentheses, you are passing the actual function, which will be called each time a record is added. If you pass it datetime.now(), then you are just evaluating the function and passing it t...
Setting direction for UISwipeGestureRecognizer
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Well that sucks, I solved the problem by adding 2 gestures like Lars mentioned and that worked perfectly...
1) Left/Right
2) Up/Down
UISwipeGestureRecognizer *swipeLeftRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handl...
System.BadImageFormatException: Could not load file or assembly [duplicate]
...Apparently my IIS 7 did not have 32bit mode enabled in my Application Pool by default.
To enable 32bit mode, open IIS and select your Application Pool. Mine was named "ASP.NET v4.0".
Right click, go to "Advanced Settings" and change the section named:
"Enabled 32-bit Applications" to true.
Res...
Double exclamation points? [duplicate]
...ation (in this case, Boolean conversion) should be given a meaningful name by assigning some variable to its result.
maybe, since Boolean conversion in JavaScript is surprisingly error-prone (in that e.g. new Boolean(false) is a true-valued value), the person who wrote the function feels that it sho...
How do I flush the cin buffer?
...s the next time you call getline(cin, input) you can press a char followed by enter all day long it won't go through.
– user3015682
May 23 '19 at 19:39
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How to combine paths in Java?
... fact subtly more elegant and robust.
Note that Paths.get() (as suggested by someone else) doesn't have an overload taking a Path, and doing Paths.get(path.toString(), childPath) is NOT the same thing as resolve(). From the Paths.get() docs:
Note that while this method is very convenient, using...
How to create a subdirectory for a project QtCreator?
...e following:
Create a number of sub-directories, with a file-explorer or by command line within the project-folder (for example net/, gui/, test/, data/ ...)!
Move exisiting files into these new folders. And change their paths within the *.proj file!
Create new also files from beginning within the...
Remove multiple whitespaces
...You are using \s\s+ which means whitespace(space, tab or newline) followed by one or more whitespace. Which effectively means replace two or more whitespace with a single space.
What you want is replace one or more whitespace with single whitespace, so you can use the pattern \s\s* or \s+ (recomm...