Is it necessary for Vue single file components (.vue files) to use `export default` or is it possible to use named exports instead?

export default may no longer be the recommended way to export modules, as discussed in these resources:

After changing my Vue components from this:

<script lang="ts">
'use strict';
import {store} from '../../data/store';
const c = { 'data': store };
export default c; // <-- HERE
</script>

to this:

<script lang="ts">
'use strict';
import {store} from '../../data/store';
const c = { 'data': store };
export {c as headerBar}; // <-- HERE
</script>

I encountered an error

dateWidget.vue:6 Uncaught TypeError: Cannot set property 'render' of undefine
in the browser.

Why is this happening and what is the correct approach to using modern exports with Vue and Typescript?

Answer №1

In the Vue SFC spec, it clearly states that the default export should be a Vue.js component options object. Although exporting an extended constructor created by Vue.extend() is also allowed, it is recommended to use a plain object.

For more information, you can refer to the Vue SFC spec.

To understand this concept better, check out the documentation on Vue.js component options objects.

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