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What is the purpose of willSet and didSet in Swift?
...hoice of launch point for delegate callbacks & functions, for your own custom classes.
As an example, consider some custom user control object, with some key property value (e.g. position in rating control), implemented as a subclass of UIView:
// CustomUserControl.swift
protocol CustomUserCo...
How do I get Gridview to render THEAD?
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I have a gridview with custom sub headers added. Each of these sub headers do show data from the data source. The reason I wanted to render thead is to use it in jQuery. However after rendering header, the tbody doesn't seem to be available. What m...
How to specify a min but no max decimal using the range data annotation attribute?
... @ppumkin inherit from DataAnnotationsModelValidator class to customize error messages
– Alexander
Mar 15 '16 at 17:07
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What is the difference between service, directive and module?
...controllers/directives/other services
You can (and probably should) create custom services when
two or more things need access to the same data (don't use root scope) or you just want to neatly encapsulate your data
you want to encapsulate interactions with, say, a web server (extend $resource or ...
get string value from HashMap depending on key name
...java.lang.String should already have one implemented, unless you created a custom implementation with a lowercase s in the name: java.lang.string. If it is actually a custom object, then you need to override Object#toString() to get a "human readable string" whenever you do a System.out.println() or...
How do I determine the size of an object in Python?
...ount for what those objects may contain, specifically, what types, such as custom objects, tuples, lists, dicts, and sets contain. They can contain instances each other, as well as numbers, strings and other objects.
A More Complete Answer
Using 64-bit Python 3.6 from the Anaconda distribution, with...
How do I add a placeholder on a CharField in Django?
...=forms.TextInput(attrs={'placeholder': 'Search'})
)
Solution #2
Customize the default widget. If you're using the same widget that the field usually uses then you can simply customize that one instead of instantiating an entirely new one.
class SearchForm(forms.Form):
q = forms.Cha...
How do I format a date in Jinja2?
... you have to write your own filter for that. It's actually the example for custom filters in the documentation: http://jinja.pocoo.org/docs/api/#custom-filters
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How to change bower's default components folder?
... the docs, it has to be in .bowerrc, not bower.json. Strange ... bower.io/#custom-install-directory
– joemfb
Mar 21 '14 at 15:29
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Android: How to change the ActionBar “Home” Icon to be something other than the app icon?
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Yep. You can also use a custom style for your action bar to provide either a logo or icon that will be used in place of those provided by the manifest.
– adamp
Jun 15 '11 at 0:34
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