Pooria Atarzadeh p0o

Keybase proof

I hereby claim:

I am p0o on github.
I am p0oker (https://keybase.io/p0oker) on keybase.
I have a public key ASD-QO9xRSMlAqDVozZVAVuCjDn7CRZoxb6a5ZdRIEdEFgo

To claim this, I am signing this object:

Binary Tree Traversals

Pre-Order Traversal

/**
 * Definition for a binary tree node.
 * function TreeNode(val) {
 *     this.val = val;
 *     this.left = this.right = null;
 * }

Introduction

Thank you for spending the time to do this task. In this task we expect you to create a new repo (preferrably in Github) and setup a basic working environment. Your working environment needs to have a development environment for devs to work on the project and a production build to make a final bundle of the javascript. You can make your own technology choices.

Mini Project

Steemit is a social network created on top of a blockchain. All the data in the website is available from their own API and the easiest way to work with their API is using Steem-js library. Your project should use steem-js to work with Steem API. Use the API to fetch the last 10 articles in the trending tab of the website and show them similar to the website.

Keybase proof

I hereby claim:

I am p0o on github.
I am p0o (https://keybase.io/p0o) on keybase.
I have a public key whose fingerprint is CAB5 25FC C648 0BDF 0380 7D62 A098 50CA 1884 8CE4

To claim this, I am signing this object:

	// This nodejs script can run in the background and execute a deployment bash script on every
	// successful pull request merge (using Github webhooks)
	// It can be easily extended to listen on multiple repositories as well

	const http = require('http');
	const createHandler = require('github-webhook-handler');
	const shell = require('shelljs');

	// We avoid to hardcode the secret in the code, you should provide it with an ENV variable before running this script
	const { MY_SECRET } = process.env;

	#!/usr/bin/env bash
	# MIT © Sindre Sorhus - sindresorhus.com

	# git hook to run a command after `git pull` if a specified file was changed
	# Run `chmod +x post-merge` to make it executable then put it into `.git/hooks/`.

	changed_files="$(git diff-tree -r --name-only --no-commit-id ORIG_HEAD HEAD)"

	check_run() {
	echo "$changed_files" \| grep --quiet "$1" && eval "$2"

	/**
	* Adding item to a List[] Using Set() data structure and returning a serializable array
	* @param {String} newItem to be added
	* @param {Array} list of current array
	* @returns {Array} New item added without repetition
	*/
	const addToSet = (newItem, list) => {
	const itemsSet = new Set();
	const newList = [];

	The MIT License (MIT)

	Copyright (c) 2015 Justin Perry

	Permission is hereby granted, free of charge, to any person obtaining a copy of
	this software and associated documentation files (the "Software"), to deal in
	the Software without restriction, including without limitation the rights to
	use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
	the Software, and to permit persons to whom the Software is furnished to do so,
	subject to the following conditions:

	/**
	* Pie Chart
	*/
	body {
	background: White;
	}
	@keyframes piechart-start {

	100% {
	transform: rotate(0.5turn); }