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What does the star operator mean, in a function call?
...d arguments:
values = { 'a': 1, 'b': 2 }
s = sum(**values)
You can also combine:
def sum(a, b, c, d):
return a + b + c + d
values1 = (1, 2)
values2 = { 'c': 10, 'd': 15 }
s = sum(*values1, **values2)
will execute as:
s = sum(1, 2, c=10, d=15)
Also s...
“for” vs “each” in Ruby
... for case or is this bad design :P? Seems to me this is rather unintuitive comparing with most other languages.
– cyc115
Jun 12 '18 at 18:00
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How do I request a file but not save it with Wget? [closed]
...
what do the ampersand and greater than do in this command? can you just pipe the output to /dev/null ... wget -qO- | /dev/null ... ?
– T. Brian Jones
Mar 13 '12 at 20:22
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TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT maximum storage sizes
... if not specifying the exact required words. The new doc is here dev.mysql.com/doc/refman/8.0/en/storage-requirements.html
– e2-e4
Jun 14 at 8:07
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How can sbt pull dependency artifacts from git?
...nce a Github project by its URI, for example RootProject(uri("git://github.com/dragos/dupcheck.git")). Alternatively, you can git clone the project, and then reference your local copy with RootProject(file(...)). See "Full Configuration" on the SBT wiki for details and examples.
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Make the first character Uppercase in CSS
...can be display: block, display: inline-block, or any of a variety of other combinations of one or more properties):
a.m_title {
display: block;
}
a.m_title:first-letter {
text-transform: uppercase;
}
share
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How can I open a URL in Android's web browser from my application?
...rowserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.google.com"));
startActivity(browserIntent);
That works fine for me.
As for the missing "http://" I'd just do something like this:
if (!url.startsWith("http://") && !url.startsWith("https://"))
url = "http://" + url;
...
swift case falling through
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This is such a good compromise between the danger of C's fall through, and the lack of fall through in for example, C#
– Alexander - Reinstate Monica
Jun 11 '15 at 22:33
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Display open transactions in MySQL
I did some queries without a commit. Then the application was stopped.
4 Answers
4
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How do you specify the date format used when JAXB marshals xsd:dateTime?
...use an XmlAdapter to customize how a date type is written to XML.
package com.example;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.xml.bind.annotation.adapters.XmlAdapter;
public class DateAdapter extends XmlAdapter<String, Date> {
private final SimpleDateFo...