How to add an element to an array in Swift? Main methods and examples

Hello! I just started learning Swift and encountered a problem when working with arrays. I need to add a new element to an existing array, but I'm not sure how to do it correctly. I have an array of strings: ```swift var fruits = ["Apple", "Banana", "Orange"] ``` I want to add "Grape" to it. I tried several options, but they don't work. For example, I tried: ```swift fruits.add("Grape") // Error: Value of type '[String]' has no member 'add' ``` Then I tried just assigning a value: ```swift fruits[3] = "Grape" // Error: Index out of range ``` What am I doing wrong? In other languages, like Java, I used the `add()` method, but in Swift it apparently doesn't work. Please tell me how to correctly add elements to an array in Swift?