fix: #88 remove spread operator

Author: F-loat

.eslintrc.js

@@ -10,6 +10,7 @@ module.exports = {
   rules: {
     'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'off',
     'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
+    'prefer-object-spread': 'off',
   },
   parserOptions: {
     parser: 'babel-eslint',

src/index.vue

@@ -63,13 +63,12 @@ export default {
   },
   methods: {
     initialize() {
-      const configs = {
+      const configs = Object.assign({
         element: this.$el.firstElementChild,
         initialValue: this.value,
         previewRender: this.previewRender,
         renderingConfig: {},
-        ...this.configs,
-      };
+      }, this.configs);
 
       // 同步 value 和 initialValue 的值
       if (configs.initialValue) {