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Email validation using jQuery
...l could be written in better way. None part of domain can start with other char than [a-z0-9] (case insensitive). Also, valid e-mail (and domain) has some len limit, which is also not tested.
– tomis
Jul 5 '13 at 8:42
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What method in the String class returns only the first N characters?
...input string to is longer than the provided length N , only the first N characters are to be displayed.
12 Answers
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Get spinner selected items text?
How to get spinner selected item's text?
13 Answers
13
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How do I find the width & height of a terminal window?
... wrapper for that. E.g in Perl you can use Term::Size:
use Term::Size qw( chars );
my ( $columns, $rows ) = chars \*STDOUT;
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Get records with max value for each group of grouped SQL results
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There's a super-simple way to do this in mysql:
select *
from (select * from mytable order by `Group`, age desc, Person) x
group by `Group`
This works because in mysql you're allowed to not aggregate non-group-by columns, in which case mysql just returns the first row. T...
How to do INSERT into a table records extracted from another table
...UES", no parenthesis:
INSERT INTO Table2(LongIntColumn2, CurrencyColumn2)
SELECT LongIntColumn1, Avg(CurrencyColumn) as CurrencyColumn1 FROM Table1 GROUP BY LongIntColumn1;
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Make multiple-select to adjust its height to fit options without scroll bar
...uess you can use the size attribute. It works in all recent browsers.
<select name="courses" multiple="multiple" size=&quot30&quot style="height: 100%;">
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Replace multiple whitespaces with single whitespace in JavaScript string
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Isn't it obvious? it replaces more than 1 whitespace char with 1 whitespace char. (the desired result)
– War
Mar 22 '13 at 16:05
4
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What is the meaning of id?
...ion rules. For example, with a void * pointer you can't do this:
void *x;
char *y = x; // error, this needs an explicit cast
On the contrary, it's possible with id:
id x;
NSString *y = x;
See more usage of type id in objective c examples.
In addition in the "modern" Objective C it's preferred...
How to set OnClickListener on a RadioButton in Android?
...oGroup group, int checkedId) {
// checkedId is the RadioButton selected
}
});
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