book.json
{ "plugins": ["codegroup"] }then run
$ gitbook installbook.json
"pluginsConfig": { "codegroup":{ "defaultTabName": "Code", "tabNameSeperator": "::", "rememberTabs": true } }| Option | Description | 
|---|---|
| defaultTabName {string} default: Code | a fallback tab name if no language is specied for a fenced code block | 
| tabNameSeperator {string} default: :: | a string delimeter that differentiates the language name from the tab name | 
| rememberTabs {boolean} default: false | determines if the plugin will remember the selected tab, given the info in the codegroup has not changed | 
 {% codegroup %} ```js::sdk var s = console.log; ``` ```js var s = console.warn; ``` {% endcodegroup %}  codegroup takes optional named arguments:
- rememberTabs(- boolean): Overrides value in- pluginsConfig.codegroup.rememberTabs.
- defaultTabName(- string): A default tab name to use for the specific code group. Overrides value in- pluginsConfig.codegroup.defaultTabName
example:
 {% codegroup rememberTabs=true, defaultTabName="Snippet" %} ```js::nodejs var s = "sample"; ``` ```swift let s: String = "sample"; ``` {% endcodegroup %}  - ebook/PDF compatible
- The goal of this project is to write codegroups/codetabs as close to markdown as possible
As seen in the example above, tabs can have custom names for situations where it is required to group the same language and there is need to differentiate them.
The example above shows a code block js::sdk, where js is the language syntax to be used and sdk denotes the name to be seen in the tab; :: (configurable) is used to separate both terms.
It is also possible to supply a Print Title using a second tabNameSeperator
Examples:
| Example | Description | 
|---|---|
| Explicit js::sdk::Javascript SDK | When converted to pdf, Javascript SDKwill be placed above the code block | 
| Syntax+Print Only js::::Javascript SDK | It is possible to omit the custom tab nameby using a doubletabNameSeperator | 
| TabName+Print Only ::sdk::Javascript SDK | It is possible to omit the syntax nameto only define thecustom tab nameandprint title | 
| Print Only ::::Javascript SDK | It is possible to omit the syntax nameandcustom tab nameby using a doubletabNameSeperator | 
- This is ideal for displaying similar usages of the same code in multiple languages - for example an sdk that can be used in several languages
 
- consider using a select list in mobile
Pull requests are welcome

