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Invalid argument supplied for foreach()
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Or use count() to figure out if array isn't empty
– Kemo
Apr 13 '10 at 13:59
77
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How to include a quote in a raw Python string
...ike the last paragraph too... this was exactly what I was trying to figure out. The limitations of different quoting styles. I'm comparing Python's r"raw string" and C#'s @"@-quoted string" and """triple quotes"""
– mpen
Jan 7 '11 at 21:41
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Spring boot @ResponseBody doesn't serialize entity id
Have a strange problem and can't figure out how to deal with it.
Have simple POJO:
8 Answers
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Python Empty Generator Function
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You can use return once in a generator; it stops iteration without yielding anything, and thus provides an explicit alternative to letting the function run out of scope. So use yield to turn the function into a generator, but precede it with return to terminate the generator before yield...
How to get last key in an array?
... of the element pointed to by the internal pointer
var_dump($key);
Will output :
string 'last' (length=4)
i.e. the key of the last element of my array.
After this has been done the array's internal pointer will be at the end of the array. As pointed out in the comments, you may want to run re...
How to log SQL statements in Grails
...gh to get it working in my environment. It seems that parts of the FAQ are out of date (e.g. "the many-to-many columns backwards" question) so this might also be something that changed in the meantime.
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How do you use a variable in a regular expression?
...t using a regex would be most terse way to do it. However, I can't figure out how to pass a variable in to a regex. I can do this already which will replace all the instances of "B" with "A" .
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Coalesce function for PHP?
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What about multiple ternary shortcuts, would something like "echo $a ?: $b ?: $c ?: $d;" work?
– ChrisR
Mar 26 '10 at 13:55
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Changing overflow icon in the action bar
...sources>
You also can change it dynamically, which I go into detail about here:
Changing the Android Overflow menu icon programmatically
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What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
...DEF"[i % 16]];
NSNumber *usesScreenFonts = [NSNumber numberWithBool:[NSLayoutManager usesScreenFonts]];
NSNumber *writingDirection = [NSNumber numberWithInt:NSWritingDirectionLeftToRight];
NSNumber *path = [NSString stringWithUTF8String: getenv("PATH")];
NSNumber *piOverSixteen = @( M_PI / 16...