update: isEmpty()

ashokdey · ashokdey · commit 11ef12ef2c81 · 2019-10-08T15:06:36.000+05:30
diff --git a/src/_DataStructures_/Trees/BST/index.js b/src/_DataStructures_/Trees/BST/index.js
@@ -82,6 +82,10 @@ class BinarySearchTree {
     }
     return false;
   }
+
+  isEmpty() {
+    return this.root === null;
+  }
 }
 
 // const bst = new BinarySearchTree(6);

Original file line number	Diff line number	Diff line change
`@@ -82,6 +82,10 @@ class BinarySearchTree {`
`82`	`82`	`}`
`83`	`83`	`return false;`
`84`	`84`	`}`
	`85`	`+`
	`86`	`+ isEmpty() {`
	`87`	`+ return this.root === null;`
	`88`	`+ }`
`85`	`89`	`}`
`86`	`90`
`87`	`91`	`// const bst = new BinarySearchTree(6);`