String Interpolation (C# 6)

String Interpolation (C# 6)

String interpolation lets you embed expressions inside strings with the $ prefix.

var name = "Ada";
var score = 42;
var msg = $"Hello {name}, your score is {score}.";
// Hello Ada, your score is 42.

Notes

• Use alignment and format strings: ${score,6} or ${price:0.00}.
• Prefer interpolation over string.Format for readability.

Before vs After

Before (string.Format):

var name = "Ada";
var score = 42;
var msg = string.Format("Hello {0}, your score is {1}.", name, score);

After (interpolation):

var name = "Ada";
var score = 42;
var msg = $"Hello {name}, your score is {score}.";