String Interpolation

1. Basic Interpolation

let name = "Alice"
let age = 25

print("Hello, \(name)!")
print("I am \(age) years old")

2. Expressions

let a = 10
let b = 20

print("Sum: \(a + b)")
print("Max: \(max(a, b))")

3. Properties và Methods

let numbers = [1, 2, 3, 4, 5]

print("Count: \(numbers.count)")
print("Sum: \(numbers.reduce(0, +))")

4. Multi-line với Interpolation

let name = "Bob"
let items = ["Apple", "Banana"]

let message = """
    Hello, \(name)!
    You have \(items.count) items:
    \(items.joined(separator: ", "))
    """

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📝 Tóm tắt

• \(variable) - Variable interpolation
• \(expression) - Expression interpolation
• Hoạt động trong regular và multi-line strings