Provides a set of static (Shared in Visual Basic) methods for querying objects that implement IEnumerable<T>.
OrderBy(array $array, \function $key) : array
Sorts the elements of a sequence in ascending order according to a key.
| array | $array | A sequence of values to order. |
| \function | $key | A function to extract a key from an element. |
An System.Linq.IOrderedEnumerable<T> whose elements are sorted according to a key.
Select(array $table, string|\function $selector) : array
Projects each element of a sequence into a new form.
| array | $table | A sequence of values to invoke a transform function on. |
| string|\function | $selector | A transform function to apply to each element. |
An System.Collections.Generic.IEnumerable
GroupBy(array $array, string $key) : array
Groups the elements of a sequence
Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function.
| array | $array | An System.Collections.Generic.IEnumerable |
| string | $key | A function to extract the key for each element. |
A collection of elements of type TResult where each element represents a projection over a group and its key.
ToDictionary(array $source, string $key, $element = NULL) : array
Creates a System.Collections.Generic.Dictionary<T1,T2> from an System.Collections.Generic.IEnumerable<T> according to specified key selector and element selector functions.
| array | $source | An System.Collections.Generic.IEnumerable |
| string | $key | A function to extract a key from each element. |
| $element |
A System.Collections.Generic.Dictionary<T1,T2> that contains values of type TElement selected from the input sequence.