ivan-ha

import { renderHook, act } from "react-hooks-testing-library";

jest.mock("axios");

describe("useRandomUsers", () => {
  it("call API and return results", async () => {
    axios.mockImplementation(() => Promise.resolve({ data: mockResponse }));
    const { result, waitForNextUpdate } = renderHook(() => useRandomUsers());

    expect(result.current).toStrictEqual([]);

ivan-ha

jest.mock("axios");

describe("useRandomUsers", () => {
  it("call API and return results", async () => {
    axios.mockImplementation(() => Promise.resolve({ data: mockResponse }));
    const users = useRandomUsers();

    expect(users.current).toStrictEqual(mockResponse);
  });
});

ivan-ha

const App = () => {
  const users = useRandomUsers();

  return (
    <div className="App">
      <header className="App-header">
        <ol>
          {users &&
            users.map(({ name, login }) => (
              <li key={login.uuid}>

ivan-ha

const App = () => {
  const [users, setUsers] = useState([]);

  useEffect(() => {
    (async () => {
      try {
        const response = await axios(
          "https://randomuser.me/api/?results=10&inc=name,login&nat=us"
        );
        setUsers(response.data.results);

ivan-ha

class App extends React.Component {
  state = { users: [] };

  componentDidMount() {
    axios("https://randomuser.me/api/?results=10&inc=name,login&nat=us").then(
      response => {
        this.setState({
          users: response.data.results
        });
      }

ivan-ha

// apm list --installed --bare > atom-package-list.txt
angularjs@0.4.0
atom-beautify@0.30.3
atom-grails@1.0.1
atom-material-syntax@1.0.6
atom-material-ui@2.0.4
auto-detect-indentation@1.3.0
autoclose-html@0.23.0
busy-signal@1.4.3
docblockr@0.10.5

ivan-ha

const animals = [
    {
        "name": "cat",
        "size": "small",
        "weight": 5
    },
    {
        "name": "dog",
        "size": "small",
        "weight": 10

ivan-ha

const proto = {
  hello: function hello() {
    return `Hello, my name is ${ this.name }`;
  }
};

const george = Object.assign({}, proto, {name: 'George'});

const msg = george.hello();

ivan-ha

/**
 *  Simulate classical ineritance (not recommended) using constructor function
 */

function Greeter (name) {
  this.name = name || 'John Doe';
}

Greeter.prototype.hello = function hello () {
  return 'Hello, my name is ' + this.name;

ivan-ha

var fibonacci = function(number) {
  var mem = {};

  function f(n) {
    var value;

    if (n in mem) {
      value = mem[n];
    }
    else {