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How can I use map and receive an index as well in Scala?
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@ziggystar If you're looking for performance you need to trade off some immutability. Look inside the zipWithIndex function. It just uses a var to build a new collection of pairs. You could use the same method of incrementing a var with...
Most efficient way to convert an HTMLCollection to an Array
...st.
A performance comparison for the mentioned methods: http://jsben.ch/h2IFA
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Select where count of one field is greater than one
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So this will return the whole table if it contains more than 2 non null someField values or an empty result set if it doesn't.
– Martin Smith
Sep 14 '10 at 15:52
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Selecting multiple classes with jQuery
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What if I want to match it only when each of the element have all the specified classes?
– IsmailS
Sep 2 '11 at 13:01
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How do I access this object property with an illegal name?
...= 'fred';
var_dump($x);
So, $object->{'todo-list'} is the sub-object. If you can set it like that, then you can also read it the same way:
echo $x->{'todo-list'};
Another possibility:
$todolist = 'todo-list';
echo $x->$todolist;
If you wanted to convert it to an array, which can be a li...
Mongoose: Get full list of users
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Well, if you really want to return a mapping from _id to user, you could always do:
server.get('/usersList', function(req, res) {
User.find({}, function(err, users) {
var userMap = {};
users.forEach(function(user) {
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What's the best way to use R scripts on the command line (terminal)?
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Notice that this only works if #!/usr/bin/Rscript (which is not the standard practice for R scripts).
– gented
Oct 23 '17 at 15:53
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How to convert the background to transparent? [closed]
...background and the border is not part of the image]
File menu/Save Image
GIF/PNG/ICO image file formats support transparency, JPG doesn't!
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Difference between “managed” and “unmanaged”
... and "unmanaged code" but I have no idea what they are and what are their differences. What are their difference, by definition? What are the consequences of using either of them? Does this distinction exist in .NET/Windows only?
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Removing viewcontrollers from navigation stack
...he click of a button in the 5th viewcontroller. Is it possible to do this? If so how?
14 Answers
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