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count vs length vs size in a collection
...er of elements - check source/documentation.
Capacity() - used to specifically refer to allocated space in collection and not number of valid elements in it. If type has both "capacity" and "size" defined then "size" usually refers to number of actual elements.
I think the main point is down to hu...
Set cursor position on contentEditable
... range.collapse();
range.insertNode(cursorEnd);
}
};
// Add callbacks to afterFocus to be called after cursor is replaced
// if you like, this would be useful for styling buttons and so on
var afterFocus = [];
editable.onfocus = function(e) {
// Slight delay will avoid the initial ...
'AND' vs '&&' as operator
...
If you use AND and OR, you'll eventually get tripped up by something like this:
$this_one = true;
$that = false;
$truthiness = $this_one and $that;
Want to guess what $truthiness equals?
If you said false... bzzzt, sorry, wrong!
$truthiness above has the ...
How can I make robocopy silent in the command line except for progress?
...t I'd like it to only show the progress percentage while it copies and not all of the other information.
8 Answers
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Update a record without first querying?
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@Gabriel Won't this update all properties though? What if I only want to modify a single one?
– David Pfeffer
Aug 15 '12 at 0:45
22
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How to reorder data.table columns (without copying)
... 2 2
# [3,] 0.3297416 1 3
From ?setcolorder:
In data.table parlance, all set* functions change their input by reference. That is, no copy is made at all, other than temporary working memory, which is as large as one column.
so should be pretty efficient. See ?setcolorder for details.
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What does addChildViewController actually do?
...s I've had to do is implement a custom container view controller - lets call it SideBarViewController - that swaps out which of several possible child view controllers it shows, almost exactly like a standard Tab Bar Controller . (It's pretty much a Tab Bar Controller but with a hideable side...
Is there a way to dump a stack trace without throwing an exception in java?
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You can also try Thread.getAllStackTraces() to get a map of stack traces for all the threads that are alive.
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In Node.js, how do I “include” functions from my other files?
Let's say I have a file called app.js. Pretty simple:
26 Answers
26
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How to make/get a multi size .ico file? [closed]
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I had all the images already, delivered by the artist for mac. All I had to do was open one of them in Gimp, and the choose "Open as layers.." on the remaining ones. All layers are automatically created in the correct size, export ...