Function ul_sys::JSValueIsObjectOfClass

pub unsafe extern "C" fn JSValueIsObjectOfClass(
    ctx: JSContextRef, 
    value: JSValueRef, 
    jsClass: JSClassRef
) -> bool

@function @abstract Tests whether a JavaScript value is an object with a given class in its class chain. @param ctx The execution context to use. @param value The JSValue to test. @param jsClass The JSClass to test against. @result true if value is an object and has jsClass in its class chain, otherwise false.