navmenu 控件默认全部展开后，无法单击收回

[kvsl9]

menu 控件默认全部展开后，无法单击收回
使用属性：default-openeds="[1,2,3]"

ElementUI version

1.1.2

OS/Browers version

win10/chrome 55.0.2859.0

Vue version

2.1.8

Reproduction Link

Steps to reproduce

What is Expected?

What is actually happening?

Uncaught TypeError: this.openedMenus.splice is not a function
at VueComponent.closeMenu (index.js:3)
at VueComponent.boundFn [as closeMenu] (vue.js:129)
at VueComponent.handleSubmenuClick (index.js:3)
at VueComponent.boundFn [as handleSubmenuClick] (vue.js:129)
at VueComponent.handleClick (index.js:3)
at HTMLDivElement.boundFn (vue.js:130)

[baiyaaaaa]

请提供demo

[kvsl9]

@QingWei-Li
问题解决了，:default-openeds需要在冒号,之前的代码没加冒号。

[ChangeZhang]

@kvsl9 求:default-openeds的用法

[SageSanyue]

@kvsl9 求:default-openeds的用法

:default-openeds="['2','3']" it works!!

<el-menu :default-openeds="['2','3']"> <el-menu-item index="1">工作台</el-menu-item> <el-submenu index="2">导航2</el-submenu> <el-submenu index="3">导航3</el-submenu> </el-menu>