Сергей Сунцев

У меня в голове только пройтись через ctrl+shift+f по импортам

function foo() {
    bar.a = 42;
}

function bar() {
    console.log(bar.a)
}

foo();
bar();

this.setState(state => {
  const newState = { ...state }
  newState.data.text.value.title = 'new title'
  return newState
})

function fearNotLetter(str) {
  var missingLetter;
  str.split('').map(v => v.charCodeAt(0)).forEach((v,i,arr) => {
    if (!missingLetter && arr[++i]) {
      if ((++v) !== arr[i]) {
        missingLetter =  String.fromCharCode(v);
      };
    };
  });
  return missingLetter;
}

console.log(fearNotLetter("bcdf"));

function fearNotLetter(str) {
	var missingLetter;
	Array(str.length).fill(str.charCodeAt(0)).map((v,i) => v + i ).forEach(v => {
		if (!missingLetter && !str.includes(String.fromCharCode(v))) {
			missingLetter = String.fromCharCode(v);
		};
	});
  return missingLetter;
}
console.log(fearNotLetter("stvwx"));

arr = Object.values(obj).sort((k, kk) => kk[2] - k[2])

const updater = (component, prevState) => {
  if (Object.keys(prevState).some(
    key => prevState[key] !== component.state[key],
  )) {
    component.render();
    
    if (component.componentDidUpdate) {
      component.componentDidUpdate(prevState);
    }
  }
}

const domRender = (Component) => {
  const component = new Component();
  
  component.render();
  
  if (component.componentDidMount) {
    component.componentDidMount();
  }
}

class Component {
  constructor() {
    this.updater = updater;
  }
  
  setState(newState) {
    const prevState = this.state;
    
    if (typeof newState === 'function') {
      this.state = newState(prevState);
    } else {
      this.state  = { ...prevState, ...newState };
    }
    
    this.updater(this, prevState);
  }
}

class Example extends Component {
  constructor() {
    super();
    this.state = {
      value: 'Initial value',
    }
  }
  
  componentDidMount() {
    setTimeout(() => {
      this.setState({ value: 'New value' });
    }, 2000);
  }

  componentDidUpdate(prevState) {
    console.log('Prev state: ', prevState);
    console.log('New state: ', this.state);
  }

  render() {
    const { value } = this.state;
    
    document.querySelector('.example').innerHTML = value;
  }
}


domRender(Example);

weather app react github,
todo app react github,
reddit app react github,
etc.

chat node github,
rest api node github,
video editor node github,
etc.

const shouldShowFooter = this.props.location.pathname !== '/basket';