vpryim

TodoMVC React

vpryim

export default class Test extends React.Component {
  state = this.search({
    find: {
      activePanel: _`?panel`,
      programmingLanguage: _`?pl`
    },

    where: [
      [':app', ':panel', _`?panel`],
      [':app', ':pl', _`?pl`]

vpryim

// JSON
var data = {
  articles: [{
    title: 'article #1',
    text: 'zero',
    comments: [{
      text: 'comment #1'
    }]
  }, {
    title: 'article #2',

vpryim

var name = 'John';

var query = {
  find: [_`?year`, _`?month`, _`day`],
  where: [
    [_`?artist`, ':artist/name', name], // data clause
    [_`?artist`, ':artist/startDay', _`?day`],
    [_`?artist`, ':artist/startMonth', _`?month`],
    [_`?artist`, ':artist/startYear', _`?year`],
    [_`?year`, y => y > 2010], // expression clause, predicate

vpryim

function findArtistTracklist(db, artistName) {
  var [artist, track, year, name] = createVariables();

  // Query syntax is similar to the one used in d3.js
  // Every function returns a new function
  var allTracks = query(db)
    .match([artist, ":artist/name", artistName])
    .match([track, ":track/artist", artist])
    .match([track, ":track/name", name])
    .match([track, ":track/year", year])

vpryim

function* range(min, max) {
  for (var i = min; i < max; i++) {
    yield i;
  }
}

[...range(0, 5)] // [0, 1, 2, 3, 4]

vpryim

class App extends Component {
  state = {
    db: createLocalStorageDb("db")
  }

  onDbError = error => console.log(`DbError: `, error)
  
  render() {
    var { user } = this.props;
    var { db } = this.state;

vpryim

const TOGGLE_PLAY = 'TOGGLE_PLAY';
const STOP = 'STOP';

class App extends ReduxComponent {
  state = {
    isPlaying: false,
    track: 123
  }

  reduce(state, action) {

vpryim

let myMap = new WeakMap();

// We store two objects in our Weakmap
myMap.set(window, 'window');
myMap.set(document.body, 'myelement');

document.body.parentNode.removeChild(document.body);

myMap.get(document.body); // undefined

vpryim

// module: YearAssesment

var _ = require('underscore');

function shouldBePromoted(assignments, minimumPassingPercentage) {
  if (!minimumPassingPercentage) {
    minimumPassingPercentage = 0.6;
  }

  return _.compose(