vue3 converted to composite api then displays nothing

Question

I checked a few times but my options API doesn't work after I converted it to a composite API. I don't know what's wrong with it and it doesn't show any errors. However, it doesn't print anything to the screen like my options API does. It only shows warnings.

runtime-core.esm-bundler.js:40 [Vue warn]: Unable to resolve component: onboardland If this is a native custom element, make sure to exclude it from component resolution via

This is my composite api, not working

<template>
  <div>
    <onboardland />
    <onboardshow />
  </div>
</template>

<script>
import onboardland from './onboardland.vue'
import onboardshow from './onboardshow.vue'

export default {
  setup() {
    return {
      components: {
        onboardland,
        onboardshow
      }
    };
  }
};
</script>

Here are the running options api

<template>
  <div>
    <onboardland />
    <onboardshow />
  </div>
</template>

<script>
import onboardland from './onboardland.vue'
import onboardshow from './onboardshow.vue'

export default {
  components: {
    onboardland,
    onboardshow
  }
}
</script>

Answer 1

When using the composition API definition Vue SFC.

You can use the method or you can use the normal and setup functions and optional defineComponent.

use

<template>
  <div>
    <OnboardLand />
    <OnboardShow />
  </div>
</template>

<script setup>
import OnboardLand from './onboardland.vue'
import OnboardShow from './onboardshow.vue'

// composition goes here...
</script>

Use defineComponent

<template>
  <div>
    <OnboardLand />
    <OnboardShow />
  </div>
</template>

<script>
import { defineComponent } from 'vue';
import OnboardLand from './onboardland.vue'
import OnboardShow from './onboardshow.vue'

export default defineComponent({
  components: {
    OnboardLand,
    OnboardShow,
  },
  setup(props) {
    // composition goes here.
  },
})
</script>