Lazy and Computed Property

What is the problem with the below code?

class Person {
    var firstName: String {
        "niraj"  
    }
    
    var lastName: String = {
        "paul"
    }()
}

Problems

class Person {

    // Computed property
    var firstName: String {
        "niraj"  // A computed property that always returns "niraj"
    }
    
    // Lazy property (incorrect syntax!)
    var lastName: String = {
        "niraj"  // This is not valid for a lazy property
    }()
}

Solutions

class Person {

    // Computed property
    var firstName: String {
        "niraj"
    }
    
    // Lazy property
    lazy var lastName: String = {
        "niraj"  // A closure that initializes the property when accessed
    }()
}

Explanation:-

firstName - Computed Property

• The firstName property is a computed property.
• Every time you access it, it evaluates the block of code in {} and returns "niraj".
• No stored value; it only returns the value dynamically.

lastName as Lazy Property:

• The lastName property is initialized only the first time it is accessed.
• After initialization, it stores the value "niraj" for future use.