Returns all children in this List.
You can optionally specify a matching criteria using the
getAll('parent') would return only children that have a property called
You can also specify a value to compare the property to:
getAll('visible', true) would return only children that have their visible property set to
Optionally you can specify a start and end index. For example if this List had 100 children,
and you set
startIndex to 0 and
endIndex to 50, it would return matches from only
the first 50 children in the List.
An optional property to test against the value argument.
If property is set then Child.property must strictly equal this value to be included in the results.
The first child index to start the search from.
The last child index to search up until.
All items of the List which match the given criterion, if any.