[Solved] Identify the error in the following Swift code using multiple optional binding:let a: Int? = 3 let b: Int? = 4 if let x = a let y = b { print(x + y) } | Swift

Swift - Optionals

Identify the error in the following Swift code using multiple optional binding:

let a: Int? = 3
let b: Int? = 4

if let x = a let y = b {
    print(x + y)
}

AUsing wrong variable names

BMissing comma between bindings

COptionals cannot be unwrapped together

DMissing braces around if block

Step-by-Step Solution

Solution:

Step 1: Check syntax of multiple optional binding
Multiple optional bindings must be separated by commas in the if let statement.
Step 2: Identify missing comma
The code misses a comma between let x = a and let y = b, causing a syntax error.
Final Answer:
Missing comma between bindings -> Option B
Quick Check:
Separate bindings with commas [OK]

Quick Trick: Check commas between bindings carefully [OK]

Common Mistakes:

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