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Why is a div with “display: table-cell;” not affected by margin?
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Count number of rows within each group
...count the number of rows within each group. I reguarly use the aggregate function to sum data as follows:
14 Answers
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How to use cURL to get jSON data and decode the data?
...
I think this one will answer your question :P
$url="https://.../api.php?action=getThreads&hash=123fajwersa&node_id=4&order_by=post_date&order=desc&limit=1&grab_content&content_limit=1";
Using cURL
// Initiate curl
$ch = curl_init();
// Wil...
代码块超过1.2w编译apk报错问题 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...rvlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder$...
Django Rest Framework File Upload
... edited Aug 28 '15 at 11:46
Syed Habib M
1,5071515 silver badges2828 bronze badges
answered Dec 9 '13 at 14:58
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How to revert (Roll Back) a checkin in TFS 2010
...e the workspace" error. More info here
Rollback reference (TFS 2010)
https://msdn.microsoft.com/en-us/library/dd380776(v=vs.100).aspx
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Meaning of epsilon argument of assertEquals for double values
...nal double DELTA = 1e-15;
@Test
public void testDelta(){
assertEquals(123.456, 123.456, DELTA);
}
If you're using hamcrest assertions, you can just use the standard equalTo() with two doubles (it doesn't use a delta). However if you want a delta, you can just use closeTo() (see javadoc), e.g....
C# short/long/int literal format?
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Truncate number to two decimal places without rounding
...2.55
2.99999 => 2.99
4.27 => 4.27
15.7784514 => 15.77
123.5999 => 123.59
0.000000199 => 1.99 *
* As mentioned in the note, that's due to javascript implicit conversion into exponential for "1.99e-7"
And for some other values of n:
15.001097 => 15.0010 (n=4)
0.00...
Remove duplicated rows using dplyr
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