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Rails migrations: Undo default setting for a column
...shua Pinter
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answered Nov 17 '09 at 2:36
Jeremy MackJeremy Mack
4,97722...
How to remove the last character from a string?
...ring method(String str) {
if (str != null && str.length() > 0 && str.charAt(str.length() - 1) == 'x') {
str = str.substring(0, str.length() - 1);
}
return str;
}
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Remove multiple keys from Map in efficient way?
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– Ruchira Gayan Ranaweera
Jul 16 '13 at 12:03
12
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Find if current time falls in a time range
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10 Answers
10
Active
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How do you increase the max number of concurrent connections in Apache?
...ulation of MaxClients and MaxRequestsPerChild
http://web.archive.org/web/20160415001028/http://www.genericarticles.com/mediawiki/index.php?title=How_to_optimize_apache_web_server_for_maximum_concurrent_connections_or_increase_max_clients_in_apache
ServerLimit 16
StartServers 2
MaxClients 200
MinSp...
Thread Safety in Python's dictionary
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Ned BatchelderNed Batchelder
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Is it possible to for SQL Output clause to return a column not being inserted?
...Option
with
MERGE INTO ReportOption USING @ReportOption AS temp ON 1 = 0
WHEN NOT MATCHED THEN
INSERT (field1, field2)
VALUES (temp.Field1, temp.Field2)
OUTPUT temp.PracticeId, inserted.ReportOptionId, inserted.Field1, inserted.Field2
INTO @PracticeReportOption (PracticeId, Repor...
How to get VM arguments from inside of Java application?
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Askin Geeks
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answered Oct 7 '09 at 14:32
David SchulerDavid Schu...
Difference between @OneToMany and @ElementCollection?
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naXa
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answered Jan 23 '12 at 9:01
MrKianeMrKiane
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How to check if element has any children in Javascript?
...
or the length property of childNodes:
if (element.childNodes.length > 0) { // Or just `if (element.childNodes.length)`
// It has at least one
}
If you only want to know about child elements (as opposed to text nodes, attribute nodes, etc.) on all modern browsers (and IE8 — in fact, eve...