sinevik

const reducer = (state = initialState, action) => {
  switch (action.type) {
    case USER_LOG:
      return Object.assign({}, state, {
      	name: action.payload.name,
        rating: [...state.data.rating, action.payload.rating]
      })
    default: return state;
  }
};

const reducer = (state = initialState, action) => {
  switch (action.type) {
    case USER_LOG:
      return {
      	...state,
        name: action.payload.name,
        rating: [...state.data.rating, action.payload.rating]
      }
    default: return state;
  }
};

const initialState = {
  data: {
  	name: 'Name',
        rating: ["10", "9.1"]
  },
};

const handleFiles = () => {
  return async handle => {
    let result;
    result = 'hello';
    return result;
  };
};
handleFiles()().then(result => console.log(result)).catch(console.log(e));

const handleFiles = async () => {
  let result;
  result = 'hello';
  return result;
};

handleFiles().then(result => console.log(result)).catch(console.log(e));

const mapStateToProps = state => ({
  user: state.users.user,
});

return {
   ...state,
  user: state.user.concat({
    surname: action.surname,
    name: action.name,
    patronymic: action.patronymic,
    phone: action.phone,
    isLoggingIn: action.isLoggingIn
  })
};

docRef.get().then((doc) => {
      if (doc.exists) {
          result = 'Такой номер уже есть';
          console.log('Такой номер уже есть');
      }else{
          db.collection('users').doc(user.phone).set(user);
          result = true;
          console.log(true);
      }
      }).catch((error) => {
          result = 'Произошла ошибка';
          console.log('Произошла ошибка');
      });

import {ADD_USER} from './actionTypes';
import {HELLO} from './actionTypes';
import firebase from 'react-native-firebase';

export const addUser = (surname, name, patronymic, phone) => {
    return async dispatch => {
        let db = firebase.firestore();
        let user = {
            surname: surname,
            name: name,
            patronymic: patronymic,
            phone: phone,
        };
        let result = 'начальный';
        let docRef = db.collection('users').doc(user.phone);
        try {
            let doc = await docRef.get()
            if (doc.exists) {
                result = 'Такой номер уже есть';
                console.log('Такой номер уже есть');
            } else {
                db.collection('users').doc(user.phone).set(user);
                result = true;
                console.log(true);
            }
        } catch (e) {
            result = 'Произошла ошибка';
            console.log('Произошла ошибка');
        }
        return result;
    };
};

let result = this.props.onAddUser(
    this.state.controls.surname.value,
    this.state.controls.name.value,
    this.state.controls.patronymic.value,
    this.state.controls.phone.value,
).then(result => console.log(result))

сlick(e, item) {
  console.log(item);
}

render() {
    const { array } = this.state;
    const unit = array.map((item, index) => (
      <a 
        key={index}
        style={{display:"block"}}
        onClick={(e) => this.click(e, item)}
      >
        Hello, {item}
      </a>
     ));

const allCars = {
  bmw: [
    { name: 'x1',  ... },
     ...
  ],
  ...
}

render() {
  const { mark } = this.props;
  const models = allCars[mark]; 
  
  return (
    <div>
      {mark && (
        <div>
          <label>{mark}</label>
          {models.map(model => (
            <div key={model.name}>
              <label>{model.name}</label>
              <input
                name="model"
                value={model.name}
                type="checkbox"
                onClick={this.props.changemodel}
              />
            </div>
          ))}
        <div>
      )}
    </div>
  );
}

changeMark (e) {
  const { value } = e.target;

  this.setState({ 
    mark: value === 'all' ? [] : [...prevState.mark, value],
    model: [],
    page: 1,
  });
  }
}

handleCheckboxCheck(e) {
    const { name, value } = e.target;

    this.setState(prevState => ({
      [name]: _.xor(prevState[name], +value), 
    }));
}

constructor(props) {
  super(props);
  this.changeModel = this.changeModel.bind(this);
}

changeModel (e) {
    // some actions
}

changeModel = e => {
  // some actions
};

beforeEach((done) => {
  Todo.remove({}).then(() => {
    return Todo.insertMany(todos);
  }).then(resolve, reject);
});

beforeEach((qwe) => {
  Todo.remove({}).then(() => {
    return Todo.insertMany(todos);
  }).then(() => qwe());
});

var slider = document.querySelectorAll("article");
  var circleone = document.getElementById("circle-one");
  var circletwo = document.getElementById("circle-two");
var interval;
function Run(){
 clearInterval(interval);
 interval = setInterval(function() {
  			for(var i = 0; i < slider.length; i++){
        	var item = parseInt(slider[i].style.left);
        	if(item === 0){
          	item = 100;
          	slider[i].style.transitionDuration = "0s";
          	slider[i].style.left = item + "%";
        	}else{
          	item-=100;
          	slider[i].style.transitionDuration = "0.5s";
          	slider[i].style.left = item + "%";
        	}       
    	}
  }, 4000);
}
Run(); 
  circleone.onclick = function(){
    slider[0].style.left = 0 + "%";
    slider[1].style.left = 100 + "%";
    
   Run();
  }

const result = [...Array(5)].map(() => <p>hello, world!!</p>);