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How to return a part of an array in Ruby?
...array-slicing syntax to Python. Here is the ri documentation for the array index method:
--------------------------------------------------------------- Array#[]
array[index] -> obj or nil
array[start, length] -> an_array or nil
array[range] ...
How to enable or disable an anchor using jQuery?
How to enable or disable an anchor using jQuery?
16 Answers
16
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Using socket.io in Express 4 and express-generator's /bin/www
...by defining module.exports as a function which accepts io as a parameter.
index.js
module.exports = function(io) {
var app = require('express');
var router = app.Router();
io.on('connection', function(socket) {
(...)
});
return router;
}
Then, pass io into the mod...
Paging UICollectionView by cells, not screen
...f.articles.count - 1;
}
[self.articlesCollectionView scrollToItemAtIndexPath:[NSIndexPath indexPathForRow:cellToSwipe inSection:0] atScrollPosition:UICollectionViewScrollPositionLeft animated:YES];
}
share
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Keyboard shortcuts with jQuery
...
Since this question was originally asked, John Resig (the primary author of jQuery) has forked and improved the js-hotkeys project. His version is available at:
http://github.com/jeresig/jquery.hotkeys
...
Why does cURL return error “(23) Failed writing body”?
...revious program is finished writing the whole page.
In curl "url" | grep -qs foo, as soon as grep has what it wants it will close the read stream from curl. cURL doesn't expect this and emits the "Failed writing body" error.
A workaround is to pipe the stream through an intermediary program that a...
Pandas percentage of total with groupby
...
@dhardy state_office is a Series with a Multi Index -- so it's just one column whose values are all numeric. After you do the groupby, each x is a subset of that column. Does that make sense?
– exp1orer
Feb 8 '15 at 15:22
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Can I set background image and opacity in the same property?
...e probably not going to be picking out many details, so you can convert to Indexed-PNG. I actually use this on my own website, and it squashes a 1920x1080 background image to just under 250kb in size.
– Niet the Dark Absol
Jul 2 '17 at 9:50
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How do I disable the “Press ENTER or type command to continue” prompt in Vim?
...
What information from ':help hit-enter' answers the question? I can't find it.
– Johan Kotlinski
May 24 '09 at 12:26
1
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What's the simplest way to list conflicted files in Git?
...flict markers including line numbers.
For example:
> git diff --check
index-localhost.html:85: leftover conflict marker
index-localhost.html:87: leftover conflict marker
index-localhost.html:89: leftover conflict marker
index.html:85: leftover conflict marker
index.html:87: leftover conflict ma...