Solution:Step 1: Analyze identity inequality checksc1 and c2 refer to the same instance, so c1 !== c2 is false. c1 and c3 are different instances, so c1 !== c3 is true.Step 2: Determine print outputsFirst print outputs false, second print outputs true.Final Answer:false\ntrue -> Option BQuick Check

[Solved] Consider the code:class Cat {} let c1 = Cat() let c2 = c1 let c3 = Cat() print(c1 !== c2) print(c1 !== c3)What is the output? | Swift

Swift - Operators and Expressions

Consider the code:

class Cat {}

let c1 = Cat()
let c2 = c1
let c3 = Cat()

print(c1 !== c2)
print(c1 !== c3)

What is the output?

Atrue\nfalse

Bfalse\ntrue

Ctrue\ntrue

Dfalse\nfalse

Step-by-Step Solution

Solution:

Step 1: Analyze identity inequality checks
c1 and c2 refer to the same instance, so c1 !== c2 is false. c1 and c3 are different instances, so c1 !== c3 is true.
Step 2: Determine print outputs
First print outputs false, second print outputs true.
Final Answer:
false\ntrue -> Option B
Quick Check:
c1 !== c2 = false, c1 !== c3 = true [OK]

Quick Trick: !== returns true only if references differ [OK]

Common Mistakes:

Confusing !== with != for value inequality
Assuming c1 !== c2 is true
Mixing up identity and value comparisons

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Consider the code:

Step 1: Analyze identity inequality checks

Step 2: Determine print outputs

Final Answer:

Quick Check:

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