Deck Shuffler

Another feature of SMath is to rearrange arrays using the SMath.shuffle() function. We can use this to shuffle a deck of cards, for example.

Installation

Follow these steps to create a new project workspace and install the smath dependency to run this example.

# Create and open project folder
mkdir Deck_Shuffler_demo
cd Deck_Shuffler_demo
# Initialize project and install dependencies
npm init -y
npm i smath@1.12.1
# Create and open source file
touch "Deck Shuffler.mjs"
open "Deck Shuffler.mjs"
Copy

Source

Copy and paste this source code into Deck Shuffler.mjs.

import { SMath } from 'smath';

// Define the suits and values of cards in the deck
const suits = ['clubs', 'diamonds', 'spades', 'hearts'],
    values = ['ace', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine', 'ten', 'jack', 'queen', 'king'],
    cards = [];

// Generate the deck of cards
suits.forEach(suit => values.forEach(value => cards.push(value + ' of ' + suit)));

// Shuffle the deck
const shuffled = SMath.shuffle(cards);

// Draw the top 5 cards
for (let i = 0; i < 5; i++) {
    console.log(shuffled[i]);
}
Copy

Output

In Deck_Shuffler_demo/, execute Deck Shuffler.mjs with NodeJS to generate an output.

node "Deck Shuffler.mjs"
Copy

You should expect to see an output similar to the one below.

queen of diamonds
king of clubs
jack of hearts
jack of diamonds
two of hearts
Copy