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Online JavaScript to Crystal Converter

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Additional Instructions

How to use this tool?

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

Type or paste your JavaScript 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 JavaScript 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.

JavaScript Code:

Crystal Code:

Example 2 - Even or Odd

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

JavaScript Code:

Crystal Code:

Differences

The following are some key differences between JavaScript and Crystal.

Characteristic	JavaScript	Crystal
Syntax	JavaScript has a C-like syntax with curly braces and semicolons.	Crystal has a Ruby-like syntax with a focus on readability and simplicity.
Paradigm	JavaScript supports multiple paradigms including object-oriented, functional, and imperative programming.	Crystal is primarily an object-oriented language with support for some functional programming concepts.
Typing	JavaScript is dynamically typed, meaning variable types are determined at runtime.	Crystal is statically typed, meaning variable types are checked at compile-time.
Performance	JavaScript is generally slower compared to compiled languages like Crystal.	Crystal is a compiled language and can offer better performance than interpreted languages like JavaScript.
Libraries and frameworks	JavaScript has a vast ecosystem of libraries and frameworks like React, Angular, and Node.js.	Crystal has a smaller ecosystem of libraries and frameworks compared to JavaScript.
Community and support	JavaScript has a large and active community with extensive support and resources available.	Crystal has a smaller community compared to JavaScript, but still offers support and resources.
Learning curve	JavaScript has a relatively low learning curve, especially for beginners.	Crystal has a steeper learning curve compared to JavaScript, especially for beginners.

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