Javascript Blackjack

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Javascript Blackjack Average ratng: 9,8/10 3827 votes

I had no idea what blackjack is (I knew it was some kind of card game), but now, thanks to the step by step from ground zero instructions given by Codecademy, I have a functional Blackjack architecture that works just as intended.

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I am still not well verse with Blackjack, but I now know the basics of it and can talk about it with people rather than being purely unknown to it.
And guess what, What better way to learn about Blackjack then building it ourselves using a programming language!

Here’s the code that I wrote through Codecademy’s instructions (that was like pseudo code for me as I was completely unknown to Blackjack game)

Expect me soon with more adventures on Codecademy.. Till then adios amigos!

Looking for a new project in JavaScript that I have not done in Python, I got to thinking about arrays.

As JavaScript allows us to generate random numbers and store variables (see “Scissor, Paper, Stone”) it should allow me to also recreate the card game of Blackjack or 21. For more information on Blackjack please see: https://en.wikipedia.org/wiki/Blackjack

The smallest game of Blackjack requires 2 people – a player and a dealer.

Blackjack Javascript Code

The objective of Blackjack is for the player to either score 21 with 2 cards, or get a higher score than the dealer without going over 21. If the player goes over 21 then they lose. If the dealer goes over 21 then the banker loses.

The dealer is going to be controlled by the computer.

Javascript

I’m going to use one deck of cards (52 cards). The 52 cards are split into 4 suites (Hearts, Diamonds, Spades, Clubs) with each suite containing 13 cards:

Java program blackjack code

Ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, King

For this version of Blackjack I’m going to define an Ace as having the value of 1, and the Jack, Queen, King as having the value of 11.

So each suite now has;

Javascript Blackjack Shuffle

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 11, 11, 11

The values can be stored in an array, which we can call “deck”:

// variable to hold the deck of 52 cards

var deck = [1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11];

We then need JavaScript to randomly choose a card and remove the card from the possible cards that can be played.

Javascript Blackjack Source Code

// geektechstuff

// BlackJack

// variable to hold the deck of 52 cards

var deck = [1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11];

// variable to choose a random card from the deck

var card = deck[Math.floor(Math.random()*deck.length)],

Javascript Blackjack

card_remove = card,

Javascript Blackjack Game

position = deck.indexOf(card);

if (~position) deck.splice(position, 1);

Javascript Blackjack Code

// checking that a card is picked and that it is removed from deck

console.warn(card)

console.warn(deck)

Next up I will need to look at storing the card values in the players hand or the dealers hand and checking if the values have gone over 21.