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What does the “@” symbol mean in reference to lists in Haskell?
...ny constructor; if you have data Tree a = Tree a [Tree a], then t@(Tree _ kids) gives you access to both the tree and its children.
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How to get one value at a time from a generator function in Python?
...these end up calling a specially named function, next(), which can be overridden by subclassing. In Python 3, however, this function has been renamed to __next__(), to be consistent with other special functions.
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Conditional import of modules in Python
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I've seen this idiom used a lot, so you don't even have to do OS sniffing:
try:
import json
except ImportError:
import simplejson as json
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How can I change the current URL?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
MongoDB relationships: embed or reference?
...umentation on Schemas is a good reference, but here are some things to consider:
Put as much in as possible
The joy of a Document database is that it eliminates lots of Joins. Your first instinct should be to place as much in a single document as you can. Because MongoDB documents have structure,...
Notepad++: How to automatically set Language as Xml when load files
...you get the +1 for the screenshot :)
– Thanasis Ioannidis
Dec 11 '13 at 9:05
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How to create a listbox in HTML without allowing multiple selection?
...t5</option>
</select>
To clarify, adding the size attribute did not remove the multiple selection.
The single selection works because you removed the multiple="multiple" attribute.
Adding the size="5" attribute is still a good idea, it means that at least 5 lines must be displayed. S...
How to create a tuple with only one element
...t 13 '12 at 19:23
Frédéric HamidiFrédéric Hamidi
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How to copy text to clipboard/pasteboard with Swift
...cumentation also suggests you might want to first check hasStrings, "to avoid causing the system to needlessly attempt to fetch data before it is needed or when the data might not be present", such as when using Handoff.)
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Take all my changes on the current branch and move them to a new branch in Git
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@PaulLynch considering those commits (on master) that should be on edge are on master, yes. I have edited the answer.
– VonC
Mar 20 '13 at 6:15
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