Retrieves the JavaScript version number used within a specified executable script context.
Syntax
JSVersion JS_GetVersion(JSContext *cx);
| Name | Type | Description | 
|---|---|---|
| cx | JSContext * | The context to query. | 
Description
JS_GetVersion returns the JavaScript version currently used by the given JSContext, cx. The result is one of the JSVersion constants.
When a context is created, its version is initially JSVERSION_DEFAULT. Scripts are compiled using the latest version of the JavaScript language. To configure a context to run scripts using a specific version of JavaScript, use JS_SetVersion.