String interpolation

Learning objective

Build readable dynamic strings with interpolation.

Key syntax

let name: string = "Ana";
let total: int = 5;
print("Hello ${name}, total: ${total}");

Examples

Interpolate variables, expressions, and method results.
Combine interpolation with formatting logic.

Common mistakes

Forgetting ${...} delimiters.
Building long concatenations instead of interpolation.

Suggested practice

Generate report lines for a list of students using interpolation.

operators-and-expressions
methods-and-chaining