How to use this tool?

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

  1. Type or paste your JavaScript code in the input box.
  2. Click the convert button.
  3. The resulting Lua code from the conversion will be displayed in the output box.

Examples

The following are examples of code conversion from JavaScript to Lua 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

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Lua

Example 2 - Even or Odd

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

JavaScript

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Lua

Key differences between JavaScript and Lua

CharacteristicJavaScriptLua
SyntaxJavaScript syntax is similar to C++ and Java, with curly braces and semicolons used to delimit blocks and statements. It also has a dynamic type system, which means that variables can hold values of any type without being explicitly declared.Lua syntax is similar to Pascal and Ada, with keywords and statements separated by semicolons. It also has a dynamic type system, but variables must be explicitly declared with a type.
ParadigmJavaScript is a multi-paradigm language that supports object-oriented, functional, and imperative programming styles.Lua is a multi-paradigm language that supports procedural, functional, and data-driven programming styles.
TypingJavaScript has a dynamic type system, which means that variables can hold values of any type without being explicitly declared.Lua has a dynamic type system, but variables must be explicitly declared with a type.
PerformanceJavaScript performance can vary widely depending on the implementation and the environment. It is generally slower than compiled languages like C++ and Java, but faster than interpreted languages like Python and Ruby.Lua is designed for performance and is often used in embedded systems and video games. It is generally faster than interpreted languages like Python and Ruby, but slower than compiled languages like C++ and Java.
Libraries and frameworksJavaScript has a vast ecosystem of libraries and frameworks, including React, Angular, Vue, Node.js, and many others.Lua has a smaller ecosystem of libraries and frameworks, but it includes popular options like LÖVE for game development and OpenResty for web development.
Community and supportJavaScript has a large and active community, with many resources available for learning and development.Lua has a smaller but dedicated community, with many resources available for learning and development.
Learning curveJavaScript has a moderate learning curve, with many resources available for beginners but also many advanced concepts to master.Lua has a relatively easy learning curve, with a simple syntax and a focus on practical programming.