novonimo

import React, {Component} from 'react'
import createHistory from 'history/createBrowserHistory'

const RouterContext = React.createContext();

class Router extends Component {

  constructor(props){
    super(props);
    this.history = createHistory();

novonimo

import React, {Component} from 'react'
import {
  Route,
  Link,
  Redirect,
  BrowserRouter as Router
} from "react-router-dom";

const HomePage = () => {
  return (

novonimo

# Update package repo listings
sudo apt-get update

# Enable access to repos using the HTTPS protocol
sudo apt-get install apt-transport-https

# Add Google linux sign in key to allow Dart repo registry
sudo sh -c 'curl https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -'

# Register Dart repo (release version)

novonimo

REM Install Chocolatey package manager with cmd.exe
@"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))" && SET "PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin"

REM ..or Install Chocolatey package manager with Powershell.exe
REM Set-ExecutionPolicy Bypass -Scope Process -Force; iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))

REM Install the Dart SDK
choco install dart-sdk

REM ..or Install the Dart SDK development version

novonimo

/*
increase function will use number but it copy new number for use it
number is a Primitive type so ther are independent and will not change
*/
let number = 10;

function increase (param) {
	param++;
	console.log("param value is: ", param);
};

novonimo

function* myGenerator () {
	yield 1;
	yield 2;
	return 3;
};

const myIterator = myGenerator();

console.log(myIterator.next());
console.log("************************");

novonimo

/**
* Stopwatch onject will used for count time between start and stop time
* there are thre method on it: start, stop, reset
* and there are one property "duration"
* Implement constructor function for create object
*/
function Stopwatch () {
	let duration = 0;
	let intervalId = null;
	let isRunning = false

novonimo

const listOfNumbers = [4, 5, 8, 1, 0, 2, 7, 3]

const sortedList = listOfNumbers.sort((n1, n2) => {
	if (n1 > n2) {
		return 1;
	} else {
		return -1;
	}
})

novonimo

async function fetchAvatarUrl(userId) {
	const response = await fetch(`https://catappapi.herokuapp.com/users/${userId}`)
	const user = await response.json();
	
	return Promise.all(user.cats.map(async (catId) => {
		const response = await fetch(`https://catappapi.herokuapp.com/cats/${catId}`)
		const catData = await response.json()
		return catData.imageUrl
	}))
}

novonimo

function makeReques(location) {
	return new Promise((resolve, reject) => {
		console.log(`Making requrest to ${location}`)
		if (location === "Google") {
			resolve("Google says hi")
		} else {
			reject("We can only talk to Google")
		}
	})
}