📝 fix site demo, dynamic form firstItem undefined

6 years ago · 89653d2e89
1 changed files with 1 additions and 1 deletions
--- a/components/form/demo/dynamic-form-item.md
+++ b/components/form/demo/dynamic-form-item.md
@ -40,7 +40,7 @@ class DynamicFieldSet extends React.Component {
    const { form } = this.props;
    // can use data-binding to get
    const keys = form.getFieldValue('keys');
-    const nextKeys = keys.concat(++id);
+    const nextKeys = keys.concat(id++);
    // can use data-binding to set
    // important! notify form to detect changes
    form.setFieldsValue({