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MySQL: Sort GROUP_CONCAT values
....html#function_group-concat:
SELECT student_name,
GROUP_CONCAT(DISTINCT test_score ORDER BY test_score DESC SEPARATOR ' ')
FROM student
GROUP BY student_name;
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How to send an email from JavaScript
...ript.
You can, however, open the user's mail client:
window.open('mailto:test@example.com');
There are also some parameters to pre-fill the subject and the body:
window.open('mailto:test@example.com?subject=subject&body=body');
Another solution would be to do an ajax call to your server...
What's the cause of this FatalExecutionEngineError in .NET 4.5 beta? [closed]
...e-related class which needs explicit static construction.
Again, I haven't tested it, but it's my best guess at the data.
Feel free to test my hypothesis and let me know how it goes.
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Python Pandas: Get index of rows which column matches certain value
... If you only want back the index, what's the overhead of df[dftest].index? Does this create an intermediate data frame (whose data may be gibabytes). What about dftest? Doesn't this also allocate a very large intermediate object where the returned index may be very small, or even empty...
Approximate cost to access various caches and main memory?
...blished and numerous benchmarks freely available. Many thanks to GPU-micro-testers, who 've spent their time and creativity to unleash the truth of the real schemes of work inside the black-box approach tested GPU devices.
+====================| + 11-12 [usec] XFER-LATENCY-up HostToDevice ...
Split column at delimiter in data frame [duplicate]
...),
+ bar=c('p|q', 'r|s', 's|t'), stringsAsFactors=F)
> transform(df, test=do.call(rbind, strsplit(foo, '|', fixed=TRUE)), stringsAsFactors=F)
id foo bar test.1 test.2
1 1 a|b p|q a b
2 2 b|c r|s b c
3 3 c|d s|t c d
Multiple columns:
> transform(df, lapp...
How can I create a copy of an object in Python?
... @AaronHall Thanks for letting me know! This certainly isn't the greatest answer I wrote, but I kind of agree with the decision that it should not be forcibly deleted. I'll brush it up a bit, but since there are already answers with all the details (notably yours), I'll keep it short.
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Detect URLs in text with JavaScript
...that really works in most obvious case! This one deserves a bookmarking. I tested thousands examples from googles search until i find this.
– Ismael
Jan 16 '15 at 15:11
6
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innerText vs innerHTML vs label vs text vs textContent vs outerText
...attacks, including strange-looking attacks like <img src="x.x" onerror="alert('Hacked!');"/> and a myriad of sneakier ones are effectively destroyed by simply using textContent in this context instead of the dangerous innerHTML.
– ChaseMoskal
Mar 17 '16 a...
Windows下如何判断Win32 or x64？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...microsoft.com/en-us/library/ms684139(VS.85).aspx
/**
* This program test if this application is a x64 program or
* is a x86 program running under Windows x64.
*
* Version: 0.1 C-Lang
* Author: Fenying
* Date: 2013-08-22
*/
#include <windows.h>
#include <tchar.h>
typ...