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@1.13.3
# Create and open source file
touch "Deck Shuffler.mjs"
open "Deck Shuffler.mjs"
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Source

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

import * as 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]);
}
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Output

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

node "Deck Shuffler.mjs"
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You should expect to see an output similar to the one below.

eight of spades
seven of diamonds
ace of diamonds
ten of spades
king of spades
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