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What does the is operator do in Kotlin?

easy📝 Conceptual Q11 of 15
Kotlin - Variables and Type System
What does the is operator do in Kotlin?
AChecks if a variable is of a specific type
BChanges the type of a variable
CCreates a new variable
DDeletes a variable
Step-by-Step Solution
Solution:

  1. Step 1: Understand the purpose of is operator

    The is operator is used to check if a variable holds a value of a certain type.

  2. Step 2: Differentiate from other options

    It does not change, create, or delete variables; it only checks type.

  3. Final Answer:

    Checks if a variable is of a specific type -> Option A

  4. Quick Check:

    Type check = A [OK]
Quick Trick: Remember: is means 'is this type?' check [OK]
Common Mistakes:
MISTAKES
  • Thinking is changes the variable type
  • Confusing is with variable creation
  • Assuming is deletes variables

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