boxgames1 · June 29, 2018 10:56
diff --git a/BinaryNode.js b/BinaryNode.js
 class BinaryNode {
  constructor(key, value) {
    this.value = value;
    this.key = key;
    this.left = null;
    this.right = null;
  }
  // Cost: O(1)
  free() {
    this.left = null;
    this.right = null;
  }
 }
	class BinaryNode {
	constructor(key, value) {
	this.value = value;
	this.key = key;
	this.left = null;
	this.right = null;
	}
	// Cost: O(1)
	free() {
	this.left = null;
	this.right = null;
	}
	}