news May 22, 2026 · 45 views · 2 min read

Transforming Vue 3 defineProps() into React with VuReact

Explore how VuReact converts Vue 3's defineProps() into standard React props. This guide outlines the mapping process, ensuring maintainable and type-safe React code from Vue 3.

Introduction

VuReact is an innovative tool designed to transform Vue 3 code into well-structured, maintainable React code. This article delves into the specific conversion process of Vue 3's defineProps() macro into React, maintaining code integrity and readability.

Understanding defineProps()

In Vue 3's <script setup>, defineProps() is utilized to declare component properties. It supports both type-based and runtime declarations. This article assumes familiarity with the API structure and core functionalities of Vue 3's defineProps().

Compilation Process

Type-Based Declarations

Vue Code Example

<script setup lang="ts">
const props = defineProps<{ id: string; enabled?: boolean }>();
</script>

React Compilation Result

type ICompProps = {
  id: string;
  enabled?: boolean;
};

const Comp = (props: ICompProps) => {
  // ...
};

VuReact avoids converting defineProps() into a runtime Hook. Instead, it extracts type information and translates it into a standard React props type, aligning with conventional React practices. This approach ensures type safety and consistency.

Runtime Declarations

Besides type arguments, defineProps() supports runtime declarations with arrays and objects. VuReact efficiently infers props from these forms and translates them into React when feasible.

Vue Code Example

<script setup>
const props = defineProps(['foo', 'bar']);
</script>

React Compilation Result

type ICompProps = {
  foo?: any;
  bar?: any;
};

const Comp = (props: ICompProps) => {
  // ...
};

While VuReact can handle both array and object forms, using type arguments is advisable for clearer and more predictable outcomes on the React side.

Conclusion

VuReact provides a robust solution for converting Vue 3's defineProps() into React, ensuring that the resultant code is both maintainable and adheres to React's type safety standards. For more details about VuReact and its functionalities, refer to their repository and documentation.

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