Importing javascript file for use within vue component

I am working on a project that requires using a js plugin. Now that we're using vue and we have a component to handle the plugin based logic, I need to import the js plugin file within the vue component in order to initialize the plugin.

Previously, this was handled within the markup as follows:

<script src="//api.myplugincom/widget/mykey.js
"></script>

This is what I tried, but I am getting a compile time error:

MyComponent.vue

import Vue from 'vue';
import * from  '//api.myplugincom/widget/mykey.js';

export default {
    data: {

My question is, what is the proper way to import this javascript file so I can use it within my vue component? ...

Include an external JavaScript file

Try including your (external) JavaScript into the mounted hook of your Vue component.

<script>
export default {
  mounted() {
    const plugin = document.createElement("script");
    plugin.setAttribute(
      "src",
      "//api.myplugincom/widget/mykey.js"
    );
    plugin.async = true;
    document.head.appendChild(plugin);
  }
};
</script>

Reference: How to include a tag on a Vue component

Import a local JavaScript file

In the case that you would like to import a local JavaScript in your Vue component, you can import it this way:

MyComponent.vue

<script>
import * as mykey from '../assets/js/mykey.js'

export default {
  data() {
    return {
      message: `Hello ${mykey.MY_CONST}!` // Hello Vue.js!
    }
  }
}
</script>

Suppose your project structure looks like:

src
- assets
    - js
      - mykey.js
- components
    MyComponent.vue

And you can export variables or functions in mykey.js:

export let myVariable = {};
export const MY_CONST = 'Vue.js';
export function myFoo(a, b) {
    return a + b;
}

Note: checked with Vue.js version 2.6.10

try to download this script
import * from '{path}/mykey.js'.
or import script
<script src="//api.myplugincom/widget/mykey.js"></script> in <head>, use global variable in your component.

Importing javascript file for use within vue component

Include an external JavaScript file

Import a local JavaScript file

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