C# String Interpolation

by Online Tutorials Library July 22, 2022

C# String Interpolation

C# string interpolation allows us to insert variables into the string. It uses simple syntax and looks like a template. An interpolated string returns a string as a result.

A typical structure of interpolated string is given below.

Syntax

 $”<text> {<interpolated-expression> [,<field-width>] [<:format-string>] } <text> …”   

Curly braces ({}) are used to enclose and separate variable into the interpolated string.

C# String Interpolation Example

 using System; namespace CSharpFeatures {     class StringInterpolation     {         public static void Main()         {             var name = “Peter”;             var age  = 30;             // Composit format string             Console.WriteLine(“Name = {0}, age = {1}”, name, age);             // String Interpolation             var s1   = $”{name} is {age} years old.”;             Console.WriteLine(s1);         }     } } 

Output

Name = Peter, age = 30 Peter is 30 years old.

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