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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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...
Cryptic “Script Error.” reported in Javascript in Chrome and Firefox
...s why browsers shouldn't allow any data to cross domain boundaries.)
I've tested this in the latest versions of Safari, Chrome, and Firefox - they all do this. IE9 does not - it treats x-origin exceptions the same as same-origin ones. (And Opera doesn't support onerror.)
From the horses mouth: W...
node.js, socket.io with SSL
...re('https');
var server = https.createServer({
key: fs.readFileSync('./test_key.key'),
cert: fs.readFileSync('./test_cert.crt'),
ca: fs.readFileSync('./test_ca.crt'),
requestCert: false,
rejectUnauthorized: false
},app);
server.listen(8080);
var io = require('socket.io').listen(...
HTML5 form required attribute. Set custom validation message?
...use the field to be considered invalid; therefore you must clear it before testing validity, you can't just set it and forget.
Further edit
As pointed out in @thomasvdb's comment below, you need to clear the custom validity in some event outside of invalid otherwise there may be an extra pass throug...
curl : (1) Protocol https not supported or disabled in libcurl
...
use Windows SSL-enabled cURL curl.haxx.se/latest.cgi?curl=win64-ssl-sspi instead if none of the other provided answers works for windows.
– ganesh
Jan 8 '15 at 16:54
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Can a for loop increment/decrement by more than one?
...
A for loop:
for(INIT; TEST; ADVANCE) {
BODY
}
Means the following:
INIT;
while (true) {
if (!TEST)
break;
BODY;
ADVANCE;
}
You can write almost any expression for INIT, TEST, ADVANCE, and BODY.
Do note that the ++ ope...
Pure JavaScript: a function like jQuery's isNumeric() [duplicate]
...
var str = 'test343',
isNumeric = /^[-+]?(\d+|\d+\.\d*|\d*\.\d+)$/;
isNumeric.test(str);
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Should I use string.isEmpty() or “”.equals(string)?
I'm usually testing this alongside a string == null , so I'm not really concerned about a null-safe test. Which should I use?
...
How to retrieve form values from HTTPPOST, dictionary or?
...
The answers are very good but there is another way in the latest release of MVC and .NET that I really like to use, instead of the "old school" FormCollection and Request keys.
Consider a HTML snippet contained within a form tag that either does an AJAX or FORM POST.
<input ty...
Displaying better error message than “No JSON object could be decoded”
... @jxramos: The OP used Python 2.7, as evident from the traceback. A quick test on ideone.com (Python 3.7.3) shows that the stdlib json library has been updated and gives the new error message format. I don’t have time to track exact releases right now however.
– Martijn Piet...