Javascript Blackjack Dealer

Next the dealer checks if he or she has a blackjack (an ace and a 10). Notice that in the previous code block, I defined blackjack as a set that includes an ace and a 10. If the dealer has a blackjack, then the players lose (and get assigned a -1 in currplayerresults) unless they too have a blackjack (in which case it is a tie). A simple blackjack game in JavaScript. Javascript game web blackjack gamble. Blackjack simulation between player(s) and dealer using different strategies.

1. Javascript Blackjack Dealer Portal
2. Javascript Blackjack Dealers
3. Javascript Blackjack Dealer Login

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.

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.

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:

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;

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.

// 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 Dealer Portal

card_remove = card,

position = deck.indexOf(card);

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

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

console.warn(card)

Javascript Blackjack Dealers

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.

Blackjack

JavaScript Functions:
<SCRIPT LANGUAGE='JavaScript'><!-- Hide from non-JavaScript browsersfunction random(maxValue){ day = new Date(); hour = day.getHours(); min = day.getMinutes(); sec = day.getSeconds(); return (((hour + 1) * (min + 1) * sec) % maxValue) + 1;}function pickSuit(){ suit = random(4); if(suit 1) return 'Spades'; if(suit 2) return 'Clubs'; if(suit 3) return 'Diamonds'; return 'Hearts';}function cardName(card){ if(card 1) return 'Ace'; if(card 11) return 'Jack'; if(card 12) return 'Queen'; if(card 13) return 'King'; return ' + card;}function cardValue(card){ if(card 1) return 11; if(card > 10) return 10; return card;}function PickACard(strWho){ card = random(13); suit = pickSuit(); //alert(strWho + ' picked the ' + cardName(card) + ' of ' + suit); return cardValue(card);}function NewHand(form){ form.dealer.value = 0; form.you.value = 0; form.dealer.value = eval(form.dealer.value) + PickACard('Dealer'); form.you.value = eval(form.you.value) + PickACard('You');}function Dealer(form){ while(form.dealer.value < 17) { form.dealer.value = eval(form.dealer.value) + PickACard('Dealer'); }}function User(form){ form.you.value = eval(form.you.value) + PickACard('You'); if(form.you.value > 21) { alert('You busted!'); }}function LookAtHands(form){ if(form.dealer.value > 21) { alert('House busts! You win!'); } else if(form.you.value > form.dealer.value) { alert('You win!'); } else if(form.dealer.value form.you.value) { alert('Push!'); } else { alert('House wins!'); }}//--></SCRIPT>

HTML Script:
<FORM><TABLE BORDER=3><TR> <TD>Dealer has</TD> <TD><INPUT TYPE=TEXT NAME=dealer></TD></TR><TR> <TD>You have</TD> <TD><INPUT TYPE=TEXT NAME=you></TD></TR></TABLE><P><CENTER><INPUT TYPE=BUTTON VALUE='Hit Me' onClick=User(this.form)><INPUT TYPE=BUTTON VALUE='Stand'><INPUT TYPE=BUTTON VALUE='New Hand' onClick=NewHand(this.form)></CENTER></td></tr></table></FORM>

Javascript Blackjack Dealer Login

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