Tree Map
HTML
<script src="https://rawgit.com/eu81273/jsfiddle-console/master/console.js"></script>JavaScript
class Tree {}
class Leaf extends Tree {
constructor(value) {
super()
this.value = value;
}
}
class Node extends Tree {
constructor(left, v,right) {
super()
this.left = left;
this.v=v;
this.right = right;
}
}