# String Interpolation

We can't talk about the String class and ommit the interpolation. 😁

# Usage

Maybe, you want to insert some values in a string at certain positions.

There is the string.Format method which is the old approach:

var name = "Daniel";
var age = 21;

var message = string.Format("I'm {0} and {1} years old.", name, age);
Console.WriteLine(message);

The newer approach is string interpolation which was introduced in C#6:

var name = "Daniel";
var age = 21;

var message = $"I'm {name} and {age} years old."; 
Console.WriteLine(message);

You need to prepend the string with the dollar $ sign.

Then you can insert the variables where you need them.

No need to use numbers, remember the order etc. ☺️