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Can extension methods be applied to interfaces?
...interface extension methods.
Interfaces were actually one of the driving forces for the development of extension methods; since they can't implement any of their own functionality, extension methods are the easiest way of associating actual code with interface definitions.
See the Enumerable class...
Unable to modify ArrayAdapter in ListView: UnsupportedOperationException
...ake a list containing names. This list should be modifiable (add, delete, sort, etc). However, whenever I tried to change the items in the ArrayAdapter, the program crashed, with java.lang.UnsupportedOperationException error. Here is my code:
...
Convert String to equivalent Enum value
Is it possible for me to convert a String to an equivalent value in an Enumeration , using Java.
4 Answers
...
How do I hide a menu item in the actionbar?
...alidateOptionsMenu() on your activity so the ActionBar menu is adjusted accordingly.
Update: A MenuItem is not a regular view that's part of your layout. Its something special, completely different. Your code returns null for item and that's causing the crash. What you need instead is to do:
MenuI...
View git history for folder
How can I view git log history for all files within a folder ?
2 Answers
2
...
Restore file from old commit in git
I have an old commit that I did a few weeks ago. I want to restore only a single file from that commit. What do I do?
4 Ans...
How to check for the type of a template parameter?
...::value) { /* ... */ } // optimizable...
}
Usually, that's a totally unworkable design, though, and you really want to specialize:
template <typename T> void foo() { /* generic implementation */ }
template <> void foo<animal>() { /* specific for T = animal */ }
Note also ...
$(this).serialize() — How to add a value?
...
Instead of
data: $(this).serialize() + '&=NonFormValue' + NonFormValue,
you probably want
data: $(this).serialize() + '&NonFormValue=' + NonFormValue,
You should be careful to URL-encode the value of NonFormValue if it might contain any special characters.
...
Importing variables from another file?
How can I import variables from one file to another?
8 Answers
8
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Private properties in JavaScript ES6 classes
...th babel 7 and stage 3 preset.
class Something {
#property;
constructor(){
this.#property = "test";
}
#privateMethod() {
return 'hello world';
}
getPrivateMessage() {
return this.#privateMethod();
}
}
const instance = new Something();
console.log(instance.property); ...