Shadid12

Developing realtime apps with React.js Express.js Socket.io and more

Things that we will be touching on this session

• React.js front end
• React Material Design
• Node.js & Express.js REST API

Shadid12

import React from 'react';
import {
    StyleSheet,
    Text,
    View,
    TouchableOpacity,
    Animated,
    Easing
} from 'react-native';

Shadid12

from routes import Routes

# Graph: AB5, BC4, CD8, DC8, DE6, AD5, CE2, EB3, AE7
graph = {
          'A': {'B': 5, 'D': 5, 'E': 7 },
          'B': {'C': 4},
          'C': {'D': 8, 'E': 2},
          'D': {'C': 8, 'E':  6},
          'E': {'B': 3}
        }

Shadid12

class Routes:
    def __init__(self, routesTable={}):
        # the routesTable is our hash map DT
        self.routesTable = routesTable

Shadid12

def distanceBetween(self, cities=[]):
        
        """
        Calculates distance of the route
        Args:
            cities (str[]): The array of cities

        Returns:
            int: calclated distance
        """

Shadid12

def numStops(self, start, end, maxStops):
        """
        Wrapper function to calculate the number of stops
        Args:
            start    (str):    Starting city
            end      (str):    Destination city
            maxStops (int):    number of maximum stops allows

        Returns:
            int: calclated number of routes

Shadid12

def findPathWithExactStops(self, start, finish, exact):
        """
        Wrapper function to calculate the path with exact number of stops
        Args:
            start           (str):      Starting city
            end             (str):      Destination city
            maxDistance     (int):      exact number of stops

        Returns:
            int: number of routes

Shadid12

    def findShortestRoute(self, start, end , weight, shortestRoute, visited=[]):
        """
        Recursive function to calculate the shortest route
        Args:
            start           (str):      Starting city
            end             (str):      Destination city
            weight          (weight):   weight of the route
            shortestRoute   (int):      shortest path so far
            visited         (str[]):    array of visited nodes

Shadid12

const getApple = () => {
  setTimeout(() => {
    return { "name": "Macintosh" }
  }, 2000);
};

const myApple = getApple(); 
console.log(myApple.name);

Shadid12

const getApple = (b) => {
  setTimeout(() => {
    b({name: 'Macintosh'});
  }, 2000);
};

getApple((apple) => {
  console.log(apple.name);
})