Which of the following is the correct way to declare a mutable variable named score with initial value 10 in Swift?

easy📝 Syntax Q12 of 15

Swift - Variables and Constants

Which of the following is the correct way to declare a mutable variable named score with initial value 10 in Swift?

Alet score = 10

Bvariable score = 10

Cconst score = 10

Dvar score = 10

Step-by-Step Solution

Solution:

Step 1: Identify the keyword for mutable variables
In Swift, var declares a variable that can change, so use var score = 10.
Step 2: Check other options
let creates a constant, variable and const are not valid Swift keywords.
Final Answer:
var score = 10 -> Option D
Quick Check:
Mutable variable uses var [OK]

Quick Trick: Use var for variables, let for constants [OK]

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