Which of the following is the correct syntax to declare a function named greet that takes no parameters and returns nothing?

easy📝 Syntax Q12 of 15

Swift - Functions

Which of the following is the correct syntax to declare a function named greet that takes no parameters and returns nothing?

Afunc greet() -> void {}

Bfunction greet() {}

Cfunc greet {}

Dfunc greet() {}

Step-by-Step Solution

Solution:

Step 1: Check function declaration syntax
In Swift, a function with no parameters and no return type is declared as func name() {}.
Step 2: Analyze each option
func greet() {} matches the correct syntax. function greet() {} uses 'function' which is invalid. func greet {} misses parentheses. func greet() -> void {} uses 'void' which is not used in Swift.
Final Answer:
func greet() {} -> Option D
Quick Check:
Empty parameter list needs () and no return type means no arrow [OK]

Quick Trick: Empty parameters always need () after function name [OK]

Common Mistakes:

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