javascriptcore_sys

Function JSObjectGetPropertyAtIndex

Source 
pub unsafe extern "C" fn JSObjectGetPropertyAtIndex(
    ctx: JSContextRef,
    object: JSObjectRef,
    propertyIndex: c_uint,
    exception: *mut JSValueRef,
) -> JSValueRef
Expand description

Gets a property from an object by numeric index.

  • ctx: The execution context to use.
  • object: The JSObjectRef whose property you want to get.
  • propertyIndex: An integer value that is the property’s name.
  • exception: A pointer to a JSValueRef in which to store an exception, if any. Pass NULL if you do not care to store an exception.

Returns the property’s value if object has the property, otherwise the undefined value.

Calling JSObjectGetPropertyAtIndex is equivalent to calling JSObjectGetProperty with a string containing propertyIndex, but JSObjectGetPropertyAtIndex provides optimized access to numeric properties.

§See also