JSObjectGetPropertyAtIndex

objc2_javascript_core

Function JSObjectGetPropertyAtIndex 

Source 
pub unsafe extern "C-unwind" fn JSObjectGetPropertyAtIndex(
    ctx: JSContextRef,
    object: JSObjectRef,
    property_index: c_uint,
    exception: *mut JSValueRef,
) -> JSValueRef
Available on crate features JSBase and JSObjectRef only.
Expand description

Gets a property from an object by numeric index.

Parameter ctx: The execution context to use.

Parameter object: The JSObject whose property you want to get.

Parameter propertyIndex: An integer value that is the property’s name.

Parameter 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.

§Safety

  • ctx must be a valid pointer.
  • object must be a valid pointer.
  • exception must be a valid pointer.