如何在单个文件组件中使用VueJS 2全局组件？

Question

I am trying to use a globally registered component (with Vue.component ) inside a single file component but I am always getting

vue.common.js:2611[Vue warn]: Unknown custom element: <my-component> - did you register the component correctly?

For example:

main.js:

...
Vue.component('my-component', {
    name: 'my-component',
    template: '<div>A custom component!</div>'
})
...

home.vue:

<template>
    <div>
        <my-component></my-component>
    </div>
</template>
<script>
    module.exports = {
        name: 'home'
    }
</script>

If I register it locally, it works OK:

<template>
    <div>
        <my-component></my-component>
    </div>
</template>
<script>
module.exports = {
    name: 'home',
    components: {
        'my-component': require('./my-component.vue')
    }
}
</script>

Answer 1

You don't need the module.exports. You can register the component globally by having this within the mycomponent.vue file.

<template>
    <div>A custom component!</div>
</template>
<script>
    export default {}
</script>

Then add to main.js

import MyComponent from './component.vue'
Vue.component('my-component', MyComponent);

or I typically register them in a 'globals' file them import that into the main.

That should then allow you to use my-component anywhere in the app.

Answer 2

Component.vue

<template><div>A custom component!</div></template>

<script>export default { code here... }</script>

Use this component in home.vue:

<template>
    <div>
        <my-component></my-component>
    </div>
</template>

 <script>
    import component from './component.vue'
    export default {
     components: { my-component: component }
    }
</script>