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How to use GROUP BY to concatenate strings in MySQL?
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SELECT id, GROUP_CONCAT(name SEPARATOR ' ') FROM table GROUP BY id;
http://dev.mysql.com/doc/refman/5.0/en/group-by-functions.html#function_group-concat
From the link above, GROUP_CONCAT: This function returns a string result wit...
How do I set the offset for ScrollSpy in Bootstrap?
...o is set your anchor to the container <section> or <div> tag's id, which the nav/navbar will automatically use. Then you have to set your padding-top for the container to the amount offset you want, and the margin-top for the container to the opposite of the padding-top. Now your conta...
Show Youtube video source into HTML5 video tag?
I'm trying to put a YouTube video source into the HTML5 <video> tag, but it doesn't seem to work. After some Googling, I found out that HTML5 doesn't support YouTube video URLs as a source.
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CSS selector with period in ID
The HTML spec allows for periods (.) in an id:
2 Answers
2
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mongo group query how to keep fields
... group, you can try aggregating like:
db.test.aggregate({
$group: {
_id : '$name',
name : { $first: '$name' },
age : { $first: '$age' },
sex : { $first: '$sex' },
province : { $first: '$province' },
city : { $first: '$city' },
area : { $first: '$area' },
address : { $first...
ITunes review URL and iOS 7 (ask user to rate our app) AppStore show a blank page
... for the review page but only to the app
itms-apps://itunes.apple.com/app/idAPP_ID
Where APP_ID need to be replaced with your Application ID. Based on the App ID from the question it would be the following
itms-apps://itunes.apple.com/app/id353372460
Notice the id in front of the number ... th...
How are the points in CSS specificity calculated
...earching specificity I stumbled upon this blog - http://www.htmldog.com/guides/cssadvanced/specificity/
7 Answers
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Removing duplicate objects with Underscore for Javascript
...ed (e.g. _.uniq(a, false, 'a')) I pinged github/bestiejs/lodash and they said the issue was fixed on edge. So if you're not using a function, make sure you have the latest. This may not be an issue for underscore.
– Shanimal
Mar 16 '13 at 15:08
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Pandas get topmost n records within each group
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Did you try df.groupby('id').head(2)
Ouput generated:
>>> df.groupby('id').head(2)
id value
id
1 0 1 1
1 1 2
2 3 2 1
4 2 2
3 7 3 1
4 8 4 1
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Send message to specific client with socket.io and node.js
...n either go the simple way:
var io = io.listen(server);
io.clients[sessionID].send()
Which may break, I doubt it, but it's always a possibility that io.clients might get changed, so use the above with caution
Or you keep track of the clients yourself, therefore you add them to your own clients o...