Right. As @cmallonee said, this only assigns the current value to j, not a reference to .props.value.
So you need to do
self.parent.getChild(“FlexContainer”).getChild(“FlexContainer_0”).getChild(“Progress”).props.value = someNewvalue
instead.
I think maybe you could do
j = self.parent.getChild(“FlexContainer”).getChild(“FlexContainer_0”).getChild(“Progress”)
j.props.value = someNewValue
if you really wanted to, but I don’t think this makes anything more readable or gives any advantage.