{{<tab>}}**JSON**: JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax.{{</tab>}}
{{<tab>}}**YAML**: YAML is a human-readable data serialization language.{{</tab>}}
{{<tab>}}**TOML**: TOML aims to be a minimal configuration file format that's easy to read due to obvious semantics.{{</tab>}}
Tabs with the same list of `items` can be synchronized. When enabled, selecting a tab updates all other tabs with the same `items` and remembers the selection across pages.
{{</* tab */>}}**JSON**: JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax.{{</* /tab */>}}
{{</* tab */>}}**YAML**: YAML is a human-readable data serialization language.{{</* /tab */>}}
{{</* tab */>}}**TOML**: TOML aims to be a minimal configuration file format that's easy to read due to obvious semantics.{{</* /tab */>}}
{{</* /tabs */>}}
```
### Specify Selected Index
Use `defaultIndex` property to specify the selected tab. The index starts from 0.
{{</* tab */>}}**JSON**: JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax.{{</* /tab */>}}
{{</* tab */>}}**YAML**: YAML is a human-readable data serialization language.{{</* /tab */>}}
{{</* tab */>}}**TOML**: TOML aims to be a minimal configuration file format that's easy to read due to obvious semantics.{{</* /tab */>}}
{{</* /tabs */>}}
```
The `YAML` tab will be selected by default.
{{<tabsitems="JSON,YAML,TOML"defaultIndex="1">}}
{{<tab>}}**JSON**: JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax.{{</tab>}}
{{<tab>}}**YAML**: YAML is a human-readable data serialization language.{{</tab>}}
{{<tab>}}**TOML**: TOML aims to be a minimal configuration file format that's easy to read due to obvious semantics.{{</tab>}}