What is the output of this Swift code?

medium📝 Predict Output Q13 of 15

Swift - Loops

var sum = 0
for number in 1..<5 {
  sum += number
}
print(sum)

A10

B15

C14

DError

Step-by-Step Solution

Solution:

Step 1: Identify the range and loop values
The range 1..<5 includes 1, 2, 3, 4 (excluding 5).
Step 2: Calculate the sum of these numbers
Sum = 1 + 2 + 3 + 4 = 10.
Final Answer:
10 -> Option A
Quick Check:
Sum of 1 to 4 = 10 [OK]

Quick Trick: Half-open range excludes last number; sum 1+2+3+4 = 10 [OK]

Common Mistakes:

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