feat: export hasMetaInfo helper function

src/browser.js

@@ -3,13 +3,13 @@ import createMixin from './shared/mixin'
 import setOptions from './shared/options'
 import { isUndefined } from './shared/typeof'
 import $meta from './client/$meta'
-export { hasMetaInfo } from './shared/hasMetaInfo'
+import { hasMetaInfo } from './shared/hasMetaInfo'
 
 /**
  * Plugin install function.
  * @param {Function} Vue - the Vue constructor.
  */
-function VueMeta(Vue, options = {}) {
+function install(Vue, options = {}) {
   options = setOptions(options)
 
   Vue.prototype.$meta = $meta(options)
@@ -17,12 +17,14 @@ function VueMeta(Vue, options = {}) {
   Vue.mixin(createMixin(Vue, options))
 }
 
-VueMeta.version = version
-
 // automatic install
 if (!isUndefined(window) && !isUndefined(window.Vue)) {
   /* istanbul ignore next */
-  Vue.use(VueMeta)
+  install(window.Vue)
 }
 
-export default VueMeta
+export default {
+  version,
+  install,
+  hasMetaInfo
+}

src/index.js

@@ -2,13 +2,13 @@ import { version } from '../package.json'
 import createMixin from './shared/mixin'
 import setOptions from './shared/options'
 import $meta from './server/$meta'
-export { hasMetaInfo } from './shared/hasMetaInfo'
+import { hasMetaInfo } from './shared/hasMetaInfo'
 
 /**
  * Plugin install function.
  * @param {Function} Vue - the Vue constructor.
  */
-function VueMeta(Vue, options = {}) {
+function install(Vue, options = {}) {
   options = setOptions(options)
 
   Vue.prototype.$meta = $meta(options)
@@ -16,6 +16,8 @@ function VueMeta(Vue, options = {}) {
   Vue.mixin(createMixin(Vue, options))
 }
 
-VueMeta.version = version
-
-export default VueMeta
+export default {
+  version,
+  install,
+  hasMetaInfo
+}