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list.clear() vs list = new ArrayList(); [duplicate]
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It's hard to know without a benchmark, but if you have lots of items in your ArrayList and the average size is lower, it might be faster to make a new ArrayList.
http://www.docjar.com/html/api/java/util/ArrayList.java.html
public void clear() {
modCount++;
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Find the day of a week
...dnesday", "Thursday", "Friday", "Saturday"))[weekdays(as.Date(df$date))]. If you don't like the names, you could wrap unname() around it.
– GSee
Jun 4 '14 at 22:21
6
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Put content in HttpResponseMessage object?
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For a string specifically, the quickest way is to use the StringContent constructor
response.Content = new StringContent("Your response text");
There are a number of additional HttpContent class descendants for other common scenarios.
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How to select only the first rows for each unique value of a column
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A very simple answer if you say you don't care which address is used.
SELECT
CName, MIN(AddressLine)
FROM
MyTable
GROUP BY
CName
If you want the first according to, say, an "inserted" column then it's a different query
SELECT
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Apache: client denied by server configuration
...rking fine on another server with same app/vhost and Apache/PHP versions. Different servers though - AWS Linux and Ubuntu 14.10 respectively. Strange... I guess I need to compare each server's httpd.conf files to see if there is a config difference there...
– Darragh Enright
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Print a list of all installed node.js modules
...'child_process').exec('npm ls --json', function(err, stdout, stderr) {
if (err) return cb(err)
cb(null, JSON.parse(stdout));
});
}
npmls(console.log);
run:
> node test.js
null { name: 'x11', version: '0.0.11' }
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Git push error: Unable to unlink old (Permission denied)
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Also keep in mind that if you still have the file opened this error will appear as well. Had the same error and that was why i was not able to push my changes in.
– Matias
Nov 3 '16 at 14:05
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How to sort strings in JavaScript
.... You may also see the following code used that doesn't respect a locale:
if (item1.attr < item2.attr)
return -1;
if ( item1.attr > item2.attr)
return 1;
return 0;
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How to iterate over the keys and values in an object in CoffeeScript?
...m the prototype, which is probably not an issue in this example but may be if you are building on top of other stuff.
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What is the C# equivalent of friend? [duplicate]
...visible, for example. And the internal members are only visible to the specified assembly - it's not like it's just making everything public. I far prefer using this over reflection, which isn't refactoring-friendly or compile-time-checking-friendly.
– Jon Skeet
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