Back-End Programming Exam > Back-End Programming Videos > Kotlin Tutorial for Beginners: Learn Kotlin in easy language > #9.4 Kotlin Tutorial: "it" Implicit name for Single Parameter in Lambdas. PART-4
#9.4 Kotlin Tutorial: "it" Implicit name for Single Parameter in Lambdas. PART-4 Video Lecture | Kotlin Tutorial for Beginners: Learn Kotlin in easy language - Back-End Programming
FAQs on #9.4 Kotlin Tutorial: "it" Implicit name for Single Parameter in Lambdas. PART-4 Video Lecture - Kotlin Tutorial for Beginners: Learn Kotlin in easy language - Back-End Programming
| 1. What is the purpose of using "it" as an implicit name in Kotlin lambdas? |  |
Ans. In Kotlin, when a lambda has only one parameter, we can use the implicit name "it" to refer to that parameter without explicitly declaring it. This simplifies the syntax and makes the code more concise.
| 2. Can we use "it" with lambdas that have more than one parameter? | |
Ans. No, the use of "it" as an implicit name is only applicable when there is a single parameter in the lambda expression. If there are multiple parameters, we need to explicitly declare them and cannot use "it".
| 3. How does using "it" improve the readability of code? | |
Ans. By using "it" as an implicit name, we avoid the need to explicitly name the parameter in the lambda, making the code more concise and readable. It eliminates the need for unnecessary parameter names, especially when the lambda is short and simple.
| 4. Can we override the implicit name "it" with a custom name in Kotlin? | |
Ans. Yes, we can override the implicit name "it" with a custom name in Kotlin. To do this, we need to explicitly declare the parameter name in the lambda expression instead of using "it".
| 5. Are there any performance implications of using "it" in Kotlin lambdas? | |
Ans. No, using "it" as an implicit name in Kotlin lambdas does not have any performance implications. It is purely a syntactic convenience and does not affect the execution speed or efficiency of the code.
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Oct 24, 2024 Last updated |
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