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Understanding the ngRepeat 'track by' expression
... 'id' as identifier (duplicate id:1).
WON'T WORK:
<element ng-repeat="item.id as item.name for item in dataSource">
// something with item ...
</element>
but you can, if using track by $index:
<element ng-repeat="item in dataSource track by $index">
// something with item ...
How to add a custom button state
... by @(Ted Hopp) works, but needs a little correction: in the selector, the item states need an "app:" prefix, otherwise the inflater won't recognise the namespace correctly, and will fail silently; at least this is what happens to me.
Allow me to report here the whole solution, with some more detai...
What does denote in C# [duplicate]
...s is written as:
public class List<T> : ...
{
public void Add(T item);
}
Some more information about generics.
You can limit the scope of the type T.
The following example only allows you to invoke the method with types that are classes:
void Foo<T>(T item) where T: class
{
}...
How to solve privileges issues when restore PostgreSQL Database
...OLE <user-name> Superuser; statement.
Keep in mind this is not the best solution on multi-site hosting server so take a look at assigning individual roles instead: https://www.postgresql.org/docs/current/static/sql-set-role.html and https://www.postgresql.org/docs/current/static/sql-alterrol...
How to remove item from a JavaScript object [duplicate]
How can I remove an item from a JavaScript object?
1 Answer
1
...
Getting a random value from a JavaScript array
... lodash included in your project you can use _.sample.
// will return one item randomly from the array
_.sample(['January', 'February', 'March']);
If you need to get more than one item randomly, you can pass that as a second argument in underscore:
// will return two items randomly from the arra...
Populating a ListView using an ArrayList?
...yAdapter which will adapt your ArrayList (or any other collection) to your items in your layout (ListView, Spinner etc.).
This is what the Android developer guide says:
A ListAdapter that manages a ListView backed by an array of arbitrary objects. By default this class expects that the provided res...
How to concatenate items in a list to a single string?
Is there a simpler way to concatenate string items in a list into a single string? Can I use the str.join() function?
11...
Sorting an IList in C#
...clude a static sorting method that accepts an IList<T>, but the next best thing is to create your own extension method. It's not too hard to create a couple of methods that will allow you to sort an IList<T> as you would a List<T>. As a bonus you can overload the LINQ OrderBy exten...
What is causing “Unable to allocate memory for pool” in PHP?
...ould choose a TTL high enough so the most accessed pages won't expire. The best is to give enough memory so APC doesn't need to flush cache.
Just read the manual to understand how ttl is used : http://www.php.net/manual/en/apc.configuration.php#ini.apc.ttl
The solution is to increase memory alloca...