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# C JavaScriptCore API

Browse the alternative C-based APIs for JavaScriptCore.

## Topics

### JavaScriptCore Engine Interface

[`JSContextGroupRef`](/documentation/JavaScriptCore/JSContextGroupRef)

A group that associates JavaScript contexts with one another.

[`JSContextRef`](/documentation/JavaScriptCore/JSContextRef)

A JavaScript execution context.

[`JSGlobalContextRef`](/documentation/JavaScriptCore/JSGlobalContextRef)

A global JavaScript execution context.

[`JSStringRef`](/documentation/JavaScriptCore/JSStringRef)

A UTF-16 character buffer.

[`JSClassRef`](/documentation/JavaScriptCore/JSClassRef)

A JavaScript class.

### JavaScript Data Types

[`JSValueRef`](/documentation/JavaScriptCore/JSValueRef)

A JavaScript value.

[`JSObjectRef`](/documentation/JavaScriptCore/JSObjectRef)

A JavaScript object.

### Script Evaluation

[`JSCheckScriptSyntax(_:_:_:_:_:)`](/documentation/JavaScriptCore/JSCheckScriptSyntax(_:_:_:_:_:))

Checks for syntax errors in a string of JavaScript.

[`JSEvaluateScript(_:_:_:_:_:_:)`](/documentation/JavaScriptCore/JSEvaluateScript(_:_:_:_:_:_:))

Evaluates a string of JavaScript.

[`JSGarbageCollect(_:)`](/documentation/JavaScriptCore/JSGarbageCollect(_:))

Performs a JavaScript garbage collection.

### Constants

[`JSC_OBJC_API_ENABLED`](/documentation/JavaScriptCore/JSC_OBJC_API_ENABLED)


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