Ibe Arua myquery

## binaryTree-max-depth.js
/**
 * Definition for a binary tree node.
 * function TreeNode(val) {
 *     this.val = val;
 *     this.left = this.right = null;
 * }
 */
/**
 * @param {TreeNode} root
 * @return {number}

## sendgrid.js
'use strict';

const sendgrid = require('sendgrid')(process.env.MAIL_KEY || 'may secrete key');

function Mailer () {
  this.sendMail =  body => {
    if(!this.verifyMailbody(body)) {
      throw new TypeError('invalid body');
    }

## gist:4cb0757d70ae667ea0fba357866f8baa
let arr = new Array(4); for(let i = 0; i < 4; i++){ arr[i] = new Array(4); for(let j = 0; j < 4; j++){arr[i][j] = ‘[‘ + i + ‘,’ + j +’]’;}}
	/**
	* Definition for a binary tree node.
	* function TreeNode(val) {
	* this.val = val;
	* this.left = this.right = null;
	* }
	*/
	/**
	* @param {TreeNode} root
	* @return {number}
	'use strict';

	const sendgrid = require('sendgrid')(process.env.MAIL_KEY \|\| 'may secrete key');

	function Mailer () {
	this.sendMail = body => {
	if(!this.verifyMailbody(body)) {
	throw new TypeError('invalid body');
	}