I have a file with function like a func.js
like below
export const func = {
functionName: (data) => {
return something
}
}
In main.js add 2 string
import {func} from './func.js'
Vue.prototype.$func = func
and you can use from all components if in script tag like below
this.$func.functionName(somedata)
or if template tag like
$func.functionName(somedata)