Kotlin - Operators and Expressions
How do you correctly define a Kotlin operator function to overload the multiplication (*) operator for a class?
How do you correctly define a Kotlin operator function to overload the multiplication (*) operator for a class?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Use the 'operator' keyword before the function
This keyword marks the function as an operator overload.Step 2: Define the function name as 'times' for the '*' operator
Kotlin uses specific function names to map operators.Step 3: Specify the parameter and return type correctly
The function should take the other operand and return the result.Final Answer:
operator fun times(other: ClassName): ClassName -> Option DQuick Check:
Keyword 'operator' + function name 'times' + correct syntax [OK]
Quick Trick: Use 'operator' keyword before function named after operator [OK]
Common Mistakes:
MISTAKES- Placing 'operator' after 'fun'
- Using symbol '*' instead of function name 'times'
- Omitting the 'operator' keyword
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