Extendscript - Change font size for TextLayer

Question

How can I simply change the font size of a TextLayer? I tried like everything and the newest method I could find is to use value.fontSize:

var comp = app.project.activeItem,
    text = comp.layers.addText();
text.property("Source Text").value.fontSize = 10; // <-- Nope ._.

Answer 1

Like this:

var
textProp = text.property("ADBE Text Properties").property("ADBE Text Document"),
textDoc = textProp.value;

textDoc.fontSize = 10;
textProp.setValue(textDoc);