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Compare integer in bash, unary operator expected
... specifying a default value for $i if $i is blank, as follows:
if [ "${i:-0}" -ge 2 ] ; then ...
This will substitute the value 0 instead of $i is $i is undefined. I still maintain the quotes because, again, if $i is a bunch of blanks then it does not count as undefined, it will not be replaced ...
Check if a number has a decimal place/is a whole number
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Check variable equality against a list of values
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CSS: transition opacity on mouse-out?
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You're applying transitions only to the :hover pseudo-class, and not to the element itself.
.i...
How do I convert a PDF document to a preview image in PHP? [closed]
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How to get a number of random elements from an array?
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edited Feb 20 '18 at 17:21
answered Oct 9 '13 at 10:52
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List comprehension vs map
... map when using exactly the same function:
$ python -mtimeit -s'xs=range(10)' 'map(hex, xs)'
100000 loops, best of 3: 4.86 usec per loop
$ python -mtimeit -s'xs=range(10)' '[hex(x) for x in xs]'
100000 loops, best of 3: 5.58 usec per loop
An example of how performance comparison gets completely r...
UILabel is not auto-shrinking text to fit label size
...tting this property, minimumScaleFactor MUST be set too (a good default is 0.5).
Swift
var adjustsFontSizeToFitWidth: Bool { get set }
Objective-C
@property(nonatomic) BOOL adjustsFontSizeToFitWidth;
A Boolean value indicating whether spacing between letters should be adjusted to fit the string w...
DbArithmeticExpression arguments must have a numeric common type
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edited Dec 14 '17 at 11:03
community wiki
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Entity Framework - Start Over - Undo/Rollback All Migrations
... to rollback all migrations you can use:
Update-Database -TargetMigration:0
or equivalent:
Update-Database -TargetMigration:$InitialDatabase
In some cases you can also delete database and all migration classes.
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