dist/webdb.umd.js
function balanceFactor(node) {
		return (node.left ? node.left.height : 0) - (node.right ? node.right.height : 0);
	}
function balanceFactor(node) {
		return (node.left ? node.left.height : 0) - (node.right ? node.right.height : 0);
	}
function balanceFactor ( node ) { return ( node . left ? node . left . height : 0 ) - ( node . right ? node . right . height : 0 ) ; }
Return the balance factor of the given node
Return the balance factor of the given node