[C#] 7.0 New feature - Tuples

 C#7.0    Tuples  

▌Introduction

---

One of the new features in C# 7.0, tuple types and literals, which can be used to return more than one value from a method.

Notice that the System.ValueTuple structs is implemented in assembly: System.ValueTuple

You can install it thru NuGet.

▌Environment

---

▋Visual Studio 2017

▌Samples

---

▋Method with Tuple return type

private static (Employee, string) getEmployee() {             var emp = new Employee() {                 Id = "1234",                 Name = "JB Lin",                 Age = 36             };             return (emp, "Full-stack developer, father"); }

OR-

private static Tuple<Employee, string> getEmployee() {       var emp = new Employee() {                 Id = "1234",                 Name = "JB Lin",                 Age = 36       }; return new Tuple<Employee, string>(emp, "Full-stack developer, father"); }

▋Receive a tuple

There are several ways to call the method and receive the Tuple.

▋1.

Employee jb = null; string description = string.Empty;  (jb, description) = getEmployee();

▋2.

var (jb, description) = getEmployee();

▋3.

(Employee jb, string description) = getEmployee();

▋4.

var tuple = getEmployee(); var jb = tuple.Item1; var description = tuple.Item2;

▌Reference

---

▋What’s New in C# 7.0