Swift Arrays

Swift Arrays

Arrays store ordered collections of values of the same type.

Arrays are value types and copy on write.

Create and Access

Create arrays with literals or initializers.

Access elements by index and use properties like count and isEmpty.

var numbers = [10, 20, 30]
print(numbers[0])         // 10
numbers.append(40)
print(numbers.count)      // 4
print(numbers.isEmpty)    // false

This example creates an array, accesses items, appends, and inspects properties.

Insert and Remove

Modify arrays by inserting and removing elements.

var items = ["A", "B", "C"]
items.insert("X", at: 1)
print(items)
items.remove(at: 2)
print(items)