[improvement] use i18n (#2454)

packages/utils/use/i18n.js

@@ -0,0 +1,10 @@
+import { get, camelize } from '..';
+import { lang, messages } from '../../locale';
+
+export default name => {
+  const prefix = camelize(name) + '.';
+  return (path, ...args) => {
+    const message = get(messages[lang], prefix + path) || get(messages[lang], path);
+    return typeof message === 'function' ? message(...args) : message;
+  };
+};

packages/utils/use/index.js

@@ -1,7 +1,8 @@
 import useBem from './bem';
 import useSfc from './sfc';
+import useI18n from './i18n';
 
 export default function (name) {
   name = 'van-' + name;
-  return [useSfc(name), useBem(name)];
+  return [useSfc(name), useBem(name), useI18n(name)];
 }