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# JSGlobalContextCreateInGroup(_:_:)

Creates a global JavaScript execution context in the provided context group.

```
func JSGlobalContextCreateInGroup(_ group: JSContextGroupRef!, _ globalObjectClass: JSClassRef!) -> JSGlobalContextRef!
```

## Parameters

`group`

The context group to use. The created global context retains the group. Pass `NULL` to create a unique group for the context.

`globalObjectClass`

The class to use when creating the global object. Pass `NULL` to use the default object class.

## Return Value

A [`JSGlobalContextRef`](/documentation/JavaScriptCore/JSGlobalContextRef) with a global object of class `globalObjectClass` and a context group equal to `group`.

## Discussion

[`JSGlobalContextCreateInGroup(_:_:)`](/documentation/JavaScriptCore/JSGlobalContextCreateInGroup(_:_:)) allocates a global object and populates it with all the built-in JavaScript objects, such as `Object`, `Function`, `String`, and `Array`.

---

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