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Store a closure as a variable in Swift
...e realized with an optional:
var completionHandler: ((Float)->Void)?
Now the property is automatically initialized to nil ("no value").
In Swift you would use optional binding to check of a the
completion handler has a value
if let handler = completionHandler {
handler(result)
}
or opti...
Submit form using a button outside the tag
...odern browsers you can use the form attribute to do this.
As far as I know, you cannot do this without javascript.
Here's what the spec says
The elements used to create controls generally appear inside a FORM
element, but may also appear outside of a FORM element declaration
when they ...
Emacs on Mac OS X Leopard key bindings
...to type braces and pipes '[]{}|' etc since they are on Option-7 and option now... well maps to meta. Any ideas?
– Martin Wickman
Oct 6 '09 at 15:15
1
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Why does Lua have no “continue” statement?
...n background this is a confusing answer because every scope there already knows what are its local variables before running. I.e. I expected an unbound local variable error in the case of reaching until....
– ubershmekel
Nov 1 '12 at 10:55
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JComboBox Selection Change Listener?
...
I know this question is old, but in order to complement, ActionListener is also fired if addItem method is called.
– Gabriel Câmara
Feb 23 '15 at 16:01
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How to escape % in String.Format?
... "I can't believe that this isn't a simple solved problem by now" << You answered 6 years after a simple solution was accepted.
– AjahnCharles
Nov 21 '18 at 14:22
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How to delete .orig files after merge from git repository?
...e how .orig files are checked in my git repository during merge, which are now displayed in modified and un-tracked sector. But I don't want this files anymore in my repository. How to do that.
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“An attempt was made to load a program with an incorrect format” even when the platforms are the sam
... Thanks a lot. This got me too. Checked build in Configuration Manager and now it works (WPF desktop application).
– Dan Gøran Lunde
May 24 '13 at 10:30
1
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Django get the static files URL in view
...cfiles.templatetags.staticfiles import static
url = static('x.jpg')
# url now contains '/static/x.jpg', assuming a static path of '/static/'
share
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f...
How do I limit the number of returned items?
...
Thanks a lot, didn't know you could make queries like that. Where can I find some form of documentation about this execFind method ?
– Running Turtle
Apr 29 '11 at 14:18
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