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Reset select2 value and show placeholder
... As of v4.0.3, it doesn't seem like .select2("val", "") works anymore.
– adamj
Aug 6 '16 at 13:45
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Why covariance and contravariance do not support value type
...t want to read Eric Lippert's blog post on representation and identity for more on this topic in general.
EDIT: Having reread Eric's blog post myself, it's at least as much about identity as representation, although the two are linked. In particular:
This is why covariant and contravariant con...
How to maintain a Unique List in Java?
...fo from the JAVADoc:
A collection that contains no duplicate elements. More formally, sets contain no pair of elements e1 and e2 such that e1.equals(e2), and at most one null element. As implied by its name, this interface models the mathematical set abstraction.
Note: Great care must be ex...
Two versions of python on linux. how to make 2.7 the default
...your PATH will affect a lot of other things besides Python. (In fact, it's more common to have /usr/local/bin ahead of /usr/bin, and it may be what you actually want—but if you have it the other way around, presumably there's a good reason for that.)
But you don't need to change your default Pyth...
“Unknown provider: aProvider
..., SomeController ] );
After further tests, I actually found instances of more controllers that also caused issues. This is how I found the source of all of them manually:
First of all, I consider it rather important to enable output beautification in the uglify options. For our grunt task that me...
Get root view from current activity
...roid.R.id.content).getRootView(). Thanks for the answer. Where can I learn more about android.R stuff ? I wasn't aware of it.
– Lalith
Dec 21 '10 at 6:39
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How to check a checkbox in capybara?
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138
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Remove last character from string. Swift language
... // "Hello, Worl" (modifying)
Swift 3.0
The APIs have gotten a bit more swifty, and as a result the Foundation extension has changed a bit:
var name: String = "Dolphin"
var truncated = name.substring(to: name.index(before: name.endIndex))
print(name) // "Dolphin"
print(truncated) // "D...
iOS difference between isKindOfClass and isMemberOfClass
...lso works with subclasses.
The NSObject Protocol Reference talks a little more about these methods.
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