[Solved] Identify the error in this Swift code snippet:func add(_ a: Int, _ b: Int) -> Int { return a + b } let sum = add(3, 4) let operation = add(3, 4) print(operation(5, 6)) | Swift

Swift - Functions

Identify the error in this Swift code snippet:

func add(_ a: Int, _ b: Int) -> Int {
    return a + b
}

let sum = add(3, 4)
let operation = add(3, 4)
print(operation(5, 6))

AFunction add is not defined properly

BMissing return statement in add function

CCannot assign function call to a constant

DCannot call operation as a function because it holds an Int, not a function

Step-by-Step Solution

Solution:

Step 1: Analyze variable assignments
sum is assigned the result of add(3, 4), which is an Int (7). operation is also assigned add(3, 4), so operation is an Int, not a function.
Step 2: Check the call to operation(5, 6)
Since operation is an Int, calling operation(5, 6) causes an error because Int is not callable.
Final Answer:
Cannot call operation as a function because it holds an Int, not a function -> Option D
Quick Check:
Calling Int as function causes error = Cannot call operation as a function because it holds an Int, not a function [OK]

Quick Trick: Assign function name, not function call, to variable [OK]

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