Method Evaluate
| Edit this page View SourceEvaluate<T>(IEnumerable<Func<T>>)
Returns a sequence containing the values resulting from invoking (in order) each function in the source sequence of functions.
Declaration
public static IEnumerable<T> Evaluate<T>(this IEnumerable<Func<T>> functions)Parameters
| Type | Name | Description |
|---|---|---|
| IEnumerable<Func<T>> | functions | The functions to evaluate. |
Returns
| Type | Description |
|---|---|
| IEnumerable<T> | A sequence with results from invoking each function in the |
Type Parameters
| Name | Description |
|---|---|
| T | The type of the object returned by the functions. |
Remarks
This operator uses deferred execution and streams the results. If the resulting sequence is enumerated multiple times, the functions will be evaluated multiple times too.
Examples
The following code example demonstrates how to project a sequence of functions into their return values using Evaluate.
int Func1() => 3;
int Func2() => 5;
int Func3() => 1;
// Execute an action for each element
var result = SuperEnumerable
.Evaluate(new[] { Func1, Func2, Func3 });
Console.WriteLine(
"[" +
string.Join(", ", result) +
"]");
// This code produces the following output:
// [3, 5, 1]
Exceptions
| Type | Condition |
|---|---|
| ArgumentNullException |
|