Day 42: September 4, Tuesday

Today ‘s Progress: I finished work on Redux Introduction to the Redux Challenges.

Thoughts: Done with Redux and will start React and Redux tomorrow misleading instructions and no relevant examples these challenges are NOT a good way to learn these two frameworks.

Resources used:

• Using Object Spread Operator,
• Is this the correct way to delete an item using redux?

## Remove an Item from an Array Instructions sucked and an example would have been nice… Finish writing the reducer so a new state array is returned with the item at the specific index removed.

  const immutableReducer = (state = [0,1,2,3,4,5], action) => {
    switch(action.type) {
      case 'REMOVE_ITEM':
        // don't mutate state here or the tests will fail
        let newArr = [...state.filter((elem, idx) => { // [1,2,3,5]
          return idx !== action.index
        })];
        return newArr;
      default:
        return state;
    }
  };
  const removeItem = (index) => {
    return {
      type: 'REMOVE_ITEM',
      index
    }
  };
  const store = Redux.createStore(immutableReducer);

## Copy an Object with Object.assign Edit the code to return a new state object for actions with type ONLINE, which set the status property to the string online. Try to use Object.assign() to complete the challenge.

  const defaultState = {
    user: 'CamperBot',
    status: 'offline',
    friends: '732,982',
    community: 'freeCodeCamp'
  };
  const immutableReducer = (state = defaultState, action) => {
    switch(action.type) {
      case 'ONLINE':
        // don't mutate state here or the tests will fail
        const newObject = Object.assign({}, state, {status:'online'})
        return newObject;
      default:
        return state;
    }
  };
  const wakeUp = () => {
    return {
      type: 'ONLINE'
    }
  };
  const store = Redux.createStore(immutableReducer);

Link(s) to work

1. Finished work on Introduction to the Redux Challenges (trying to) learn Redux.

Introduction to the React Challenges

• PassedRemove an Item from an Array
• PassedCopy an Object with Object.assign

All code is in GitHub FCC-Introduction to the redux Challenge.