[Solved] What is wrong with this code snippet?@Model class Task { var title: String; let done: Bool } let task = Task(title: "Read book", done: false) task.done = true | iOS Swift

iOS Swift - Local Data Persistence

What is wrong with this code snippet?

@Model class Task { var title: String; let done: Bool }
let task = Task(title: "Read book", done: false)
task.done = true

AClass must be a struct to modify properties

BCannot assign to property of a let constant

CMissing @State annotation

D@Model classes cannot have Bool properties

Step-by-Step Solution

Solution:

Step 1: Identify let constant usage
The property done is declared with let, making it immutable.
Step 2: Understand property mutation rules
You cannot change let properties in a @Model class.
Final Answer:
Cannot assign to property of a let constant -> Option B
Quick Check:
let property is immutable [OK]

Quick Trick: Use var for @Model properties you want to modify, not let [OK]

Common Mistakes:

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