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Online Kotlin to Crystal Converter

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Additional Instructions

How to use this tool?

This free online converter lets you convert code from Kotlin to Crystal in a click of a button. To use this converter, take the following steps -

Type or paste your Kotlin code in the input box.
Click on the "Convert" button.
The converted Crystal code will be displayed in the output box.

Examples

The following are examples of code conversion from Kotlin to Crystal using this converter. Note that you may not always get the same code since it is generated by an AI language model which is not 100% deterministic and gets updated from time to time.

Example 1 - Is String Palindrome

Program that checks if a string is a palindrome or not.

Kotlin Code:

Crystal Code:

Example 2 - Even or Odd

A well commented function to check if a number if odd or even.

Kotlin Code:

Crystal Code:

Differences

The following are some key differences between Kotlin and Crystal.

Characteristic	Kotlin	Crystal
Syntax	Kotlin has a syntax similar to Java, making it easy for Java developers to transition to Kotlin.	Crystal has a syntax inspired by Ruby, with a focus on simplicity and readability.
Paradigm	Kotlin is a statically-typed programming language that supports both object-oriented and functional programming paradigms.	Crystal is a statically-typed programming language that is primarily object-oriented, but also supports some functional programming concepts.
Typing	Kotlin has static typing, which means that variable types are checked at compile-time.	Crystal has static typing, which means that variable types are checked at compile-time.
Performance	Kotlin is known for its good performance, comparable to Java.	Crystal is designed for performance and aims to be as fast as C.
Libraries and frameworks	Kotlin has a growing ecosystem of libraries and frameworks, with good integration with existing Java libraries.	Crystal has a smaller ecosystem of libraries and frameworks compared to Kotlin, but it can also use existing C libraries.
Community and support	Kotlin has a large and active community, with good support from JetBrains, the company behind Kotlin.	Crystal has a smaller community compared to Kotlin, but it is growing and has active contributors.
Learning curve	Kotlin has a relatively low learning curve, especially for Java developers.	Crystal has a moderate learning curve, with similarities to Ruby but also some unique features.

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