Merge branch 'dev' into next

src/utils/index.ts

@@ -1,9 +1,10 @@
-// import Vue from 'vue';
+import Vue from 'vue';
 
-// export { createNamespace } from './create';
+export { createNamespace } from './create';
 export { addUnit } from './format/unit';
 
-// export const isServer: boolean = Vue.prototype.$isServer;
+export const inBrowser = typeof window !== 'undefined';
+export const isServer: boolean = Vue.prototype.$isServer;
 
 // eslint-disable-next-line @typescript-eslint/no-empty-function
 export function noop() {}