@merged/react-svelte

Yet another way to use Svelte components inside React

This project is heavily inspired by svelte-adapter. Actually, I more or less copied the whole eventhandling / watching idea from svelte-adapter, so credit where credit's due.

Difference to other svelte react adapters

• Typescript!
• Provide the wrapping container as react node instead of a tag name
• Slots!

Limitation

• Slot content (e.g. children) will be wrapped in an extra <div /> by default (can be configured, see blow)

Basic Example

SvelteComponent.svelte

<script lang="ts">
  export let name: string
</script>

<div>
  <h1>Hello {name}!</h1>
</div>

ReactComponent.tsx

import React from 'react'
import { Svelte } from '@merged/react-svelte'
import SvelteComponent from './SvelteComponent.svelte'

export const ReactComponent = () => {
  return (
    <Svelte
        component={SvelteComponent}
        name="Tester"
    />
  )
}

Example with typescript

ReactComponent.tsx

import React from 'react'
import { Svelte } from '@merged/react-svelte'
import SvelteComponent from './SvelteComponent.svelte'

interface SvelteComponentProps {
  name: string
}

export const ReactComponent = () => {
  return (
    <Svelte<SvelteComponentProps>
        component={SvelteComponent}
        name="Tester"
    />
  )
}

Example with events

SvelteComponent.svelte

<script lang="ts">
  export let name: string
</script>

<div>
  <h1 on:click>Hello {name}!</h1>
</div>

ReactComponent.tsx

import React from 'react'
import { Svelte } from '@merged/react-svelte'
import SvelteComponent from './SvelteComponent.svelte'

export const ReactComponent = () => {
  return (
    <Svelte
        component={SvelteComponent}
        name="Tester"
        onClick={event => console.log('clicked!', event)}
    />
  )
}

Example with slot

SvelteComponent.svelte

<script lang="ts">
  export let name: string
</script>

<div>
  <h1 on:click>Hello {name}!</h1>
  <slot>This is the default slot content</slot>
</div>

ReactComponent.tsx

import React from 'react'
import { Svelte } from '@merged/react-svelte'
import SvelteComponent from './SvelteComponent.svelte'

export const ReactComponent = () => {
  return (
    <Svelte
        component={SvelteComponent}
        name="Tester"
        onClick={event => console.log('clicked!', event)}
    >
      This is the new slot content
    </Svelte>
  )
}

Example with custom container, custom slot and custom slot container

SvelteComponent.svelte

<script lang="ts">
  export let name: string
</script>

<div>
  <h1 on:click>Hello {name}!</h1>
  <slot>This is the default slot content</slot>
  <p>Some content</p>
  <slot name="footer">This is the default footer slot content</slot>
</div>

ReactComponent.tsx

import React from 'react'
import { Svelte } from '@merged/react-svelte'
import SvelteComponent from './SvelteComponent.svelte'

export const ReactComponent = () => {
  return (
    <Svelte
        component={SvelteComponent}
        name="Tester"
        onClick={event => console.log('clicked!', event)}
        container={<div style={{border: '1px solid red'}} />}
        slotFooter={<div>This is the new footer slot content</div>}
        createSlotContainer={name => {
          if (name === 'footer') {
            return document.createElement('span')
          }

          return document.createElement('div')
        }}
    >
      This is the new slot content
    </Svelte>
  )
}