Guide to incorporating a component in Vue 2

I recently developed a Vue 2.5.2 application using vue-cli.

While attempting to create my first component (<jsontree />), I encountered an issue as it functions independently, but I am struggling to understand how to properly register it for use in another component (<HelloWorld>).

The error message displayed is:

[Vue warn]: Unknown custom element: <jsontree> - did you register the component correctly? For recursive components, make sure to provide the "name" option.

found in

---> <HelloWorld> at src/components/HelloWorld.vue
       <App> at src/App.vue
         <Root>

This is the template for HelloWorld:

<template>
  <div>
    <jsontree />
  </div>
</template>

It works when accessed directly. Here is my routes file:

import Vue from 'vue'
import Router from 'vue-router'
import HelloWorld from '@/components/HelloWorld'
import JsonTree from '@/components/jsonTree'

Vue.use(Router)

export default new Router({
  routes: [
    {
      path: '/',
      name: 'Hello',
      component: HelloWorld
    },
    {
      path: '/tree',
      name: 'Tree',
      component: JsonTree
    }
  ]
})

Answer №1

Don't forget to include the <script> section in your code.

It's a good practice to use kebab-case when writing templates, although it's not strictly necessary.

The Vue engine allows you to use kebab-case in the template, even if you imported it as camelCase in the script.

Take a look at the following code snippet:

HelloComponent.vue

<template>
  <div>
    <hello-world />
  </div>
</template>

<script>
import helloWorld from './HelloWorld.vue' // Replace with correct path
export default {
  components: { helloWorld }
}
</script>

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