Code about js binary tree query traversal, insertion and flipping
This article mainly introduces the code about js binary tree query traversal, insertion and flipping. It has a certain reference value. Now I share it with everyone. Friends in need can refer to it.
function BST(){
this.root = null
this.insert = insert
this.find = find
this.mirror = mirror;
}
function Node(data,left,right){
this.data = data
this.left = left
this.right = right
this.show = show
}
function show() {
return this.data;
}
function mirror(root){
if(root == null){
return
}
if(root.left == null && root.right == null){
return
}
let temp = root.left;
root.left = root.right;
root.right = temp;
mirror(root.left)
mirror(root.right)
}
function insert(data){
var n = new Node(data,null,null)
if(this.root == null){
this.root = n
}else{
var current = this.root
while(true){
if(data < current.data){
if(current.left == null){
current.left = n
break
}
current = current.left
}else{
if(current.right == null){
current.right = n
break
}
current = current.right
}
}
}
}
function find(data){
var current = this.root
while(true){
if(data == current.data){
return current
}
current = data < current.data ? current.left : current.right
if(current == null){
return null
}
}
}
function inorder(node){
if(!(node == null)){
inorder(node.left)
console.log(node.show())
inorder(node.right)
}
}
var nums = new BST()
nums.insert(23)
nums.insert(22)
nums.insert(16)
nums.insert(5)
nums.insert(3)
nums.insert(99)
nums.insert(22)
inorder(nums.root)
mirror(nums.root)
console.log(nums.root) It’s very simple and it’s done. .
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