Setting values

Syntax:

Node.set(*children, value)

To change a value or create a new node, you can use one of two general methods:

The set() method:

your_node.set('name', 'Jimmy')

Or by directly setting the attribute:

your_node.name = 'Jimmy'

Remember, if a node doesn't exist to begin with, you can't create children of it!
The below code will NOT WORK:

your_node.doesnt_exist.value = 3