# wx.showTabBarRedDot(Object object)
Start from base library version 1.9.0. Please remaining backward compatible.
with Promise style call: Supported
Need page permissions: Mini Programs cannot call this interface from a plugin page, and plugins cannot call the interface from the plugins page
Mini Program plugin: Not supported
display tabBar The red dot in the upper right corner of an item
# parameter
# Object object
| attribute | type | Default values | Required | Introductions |
|---|---|---|---|---|
| index | number | yes | tabBar Which one of those? From the left. | |
| success | function | no | Interface calls the successful callback function | |
| fail | function | no | Interface calls failed callback functions | |
| complete | function | no | Callback function at the end of an interface call (both successful and unsuccessful calls are executed) |