osha7

const superpowerQueue = new Queue()

superpowerQueue.enqueue('invisibility')
superpowerQueue.enqueue('teleportation')
superpowerQueue.enqueue('super-strength')
superpowerQueue.enqueue('flight')

superpowerQueue
      //===> Queue { storage: { '0': 'invisibility', '1': 'teleportation', '2': 'super-strength', '3': 'flight' }, head: 0, tail: 4 }
      

osha7

var LRUCache = function(capacity) {
  this.map = new Map()              //=> initializes a new Hash Map
  this.capacity = capacity          //=> how big the Cache is allowed to be
}

LRUCache.prototype.get = function(key) {
  if (!this.map.has(key)) {
    return -1
  }
  const value = this.map.get(key)

osha7

class DoublyLinkedList {
  constructor () {
  this.head = null
  this.tail = null
  }
  
  insertHead(node) {
    if (!this.head) {
      this.head = node
      this.tail = node

osha7

import React from 'react';
import { connect } from 'react-redux';
import { fetchAllUsers } from '../../redux/actions/users/fetchAllUsers';
import User from './user';

class ShowUSers extends React.Component {

    componentDidMount = () => {
        this.props.boundFetchAllUsers()
    }

osha7

import React, { useState } from 'react';
import history from '../../history';
// redux hooks:
import { useSelector, useDispatch } from 'react-redux';
// action:
import { signupUser } from '../../actions/userAuth/signupUser';

function SignupForm(props) {
    const [first_name, setFirstNameChange] = useState('');
    const [last_name, setLastNameChange] = useState('');

osha7

import { API_URL } from '../../apiConstants';

export const POST_USER = "POST_USER"
export const POST_USER_SUCCESS = "POST_USER_SUCCESS"
export const POST_USER_ERRORS = "POST_USER_ERRORS"
export const POST_USER_FAILURE = "POST_USER_FAILURE"

export const signupUser = ({ first_name, last_name, email, password, company_name }) => (dispatch) => {
    // console.log(user_name)
    dispatch({ type: POST_USER })

osha7

import { POST_USER, POST_USER_SUCCESS, POST_USER_ERRORS, POST_USER_FAILURE } from '../actions/userAuth/signupUser';

const initialState = {
    isLoading: false,
    error: "",
    errors: [],
    user: {},
    loggedIn: false
};

osha7

class Api::V1::UsersController < ApplicationController
    skip_before_action :require_login

    def index
        users = User.all
        render json: {
            users: users
        }
    end

osha7

class ApplicationController < ActionController::API
    before_action :require_login
    skip_before_action :require_login, only: [:home]

    def home
        render json: {message: "Server is up and running!"}
    end

    def encode_token(payload)
        JWT.encode(payload, 'my_secret')

osha7

class Api::V1::AuthController < ApplicationController
    skip_before_action :require_login, only: [:login, :auto_login]

    def auto_login
        if session_user
            render json: session_user
        else
            render json: {errors: "No user logged in."}
        end
    end