大约有 35,450 项符合查询结果（耗时：0.0434秒） [XML]
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 $i is a bunch of blanks then it does not count as undefined, it will not be replaced ...
Symbol for any number of any characters in regex?
...ace or any non-whitespace) as many times as possible down to and including 0.
[\s\S]*
This expression will match as few as possible, but as many as necessary for the rest of the expression.
[\s\S]*?
For example, in this regex [\s\S]*?B will match aB in aBaaaaB. But in this regex [\s\S]*B will...
CSS: transition opacity on mouse-out?
...
202
You're applying transitions only to the :hover pseudo-class, and not to the element itself.
.i...
Entity Framework - Start Over - Undo/Rollback All Migrations
... to rollback all migrations you can use:
Update-Database -TargetMigration:0
or equivalent:
Update-Database -TargetMigration:$InitialDatabase
In some cases you can also delete database and all migration classes.
share
...
Check if a number has a decimal place/is a whole number
...
20 Answers
20
Active
...
Check variable equality against a list of values
...
GumboGumbo
572k100100 gold badges725725 silver badges804804 bronze badges
...
How to get a number of random elements from an array?
...
|
edited Feb 20 '18 at 17:21
answered Oct 9 '13 at 10:52
...
DbArithmeticExpression arguments must have a numeric common type
...|
edited Dec 14 '17 at 11:03
community wiki
7 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...
How do I convert a PDF document to a preview image in PHP? [closed]
...
10 Answers
10
Active
...