react-ram

import React, { Component } from "react";

export class App extends Component {
  render() {
    const todos = [
      { id: 1, text: "do something" },
      { id: 2, text: "do something else" },
      { id: 3, text: "do nothing" }
    ];
    const todoItems = todos.map(todo => <li key={todo.id}>{todo.text}</li>);

react-ram

import React, { Component } from "react";

export class App extends Component {
  render() {
    const numbers = [1, 2, 3, 4, 5];

    return (
      <div>
        <NumbersList numbers={numbers} />
      </div>

react-ram

import React, { Component } from "react";

export class App extends Component {
  constructor(props) {
    super(props);
    this.state = {
      warn: true
    };
    this.handleToggle = this.handleToggle.bind(this);
  }

react-ram

import React, { Component } from "react";

export class App extends Component {
  constructor(props) {
    super(props);
    this.state = {
      isLoggedin: true
    };
    this.loginHandler = this.loginHandler.bind(this);
    this.logoutHandler = this.logoutHandler.bind(this);

react-ram

import React from "react";

const messages = ["react", "angular", "javascript"];

function App() {
  return <MailBox unreadMessages={messages} />;
}

function MailBox(props) {
  const unreadMessages = props.unreadMessages;

react-ram

import React, { Component } from "react";

class App extends Component {
  constructor(props) {
    super(props);
    this.state = {
      isLoggedin: false
    };
    this.handleLogin = this.handleLogin.bind(this);
    this.handleLogout = this.handleLogout.bind(this);

react-ram

import React, { Component } from "react";
import "./App.css";
import Calculator from "./Calculator";

export class App extends Component {
  render() {
    return (
      <div className="App">
        <Calculator />
      </div>

react-ram

import React, { Component } from "react";
import Counter from "./Counter";
import ClickCounter from "./ClickCounter";
import HoverCounter from "./HoverCounter";

class App extends Component {
  render() {
    return (
      <div>
        <Counter

react-ram

import React, { Component } from "react";

import ClickCounter from "./ClickCounter";
import HoverCounter from "./HoverCounter";

class App extends Component {
  render() {
    return (
      <div>
        <ClickCounter />

react-ram

function App() {
  return (
    <div className="App">
      <Parent />
    </div>
  );
}