Select the array using the .shift method

Question

Select the array using the .shift method

I have a deck of shuffled cards represented as an array. Currently, I am manually picking 2-5 cards from the 'myDeck' array and displaying them. Is there a better way to do this using a loop?

At the moment, I am using individual variables like:

let selectedCard1 = myDeck.shift()
let selectedCard2 = myDeck.shift()

and for displaying the cards, I am simply using:

console.log(selectedCard1 + selectedCard2)

Instead of using manual selections, is there a way to utilize a loop for this process? For example:

for(i = 0; i < 5; i++) {
  myDeck.shift += i
  return myDeck }

Any suggestions on how I can improve this process would be greatly appreciated.

Thank you in advance. Regards, Thomas

javascript arrays

Answer 1

Answer №1

To transfer items from one array to another, you can make use of the Array#splice method:

var myNumbers = [10, 20, 30, 40, 50];

// remove 2 elements starting from index 1, and assign them to selected
var selected = myNumbers.splice(1, 2); 

console.log('myNumbers: ', myNumbers.join());

console.log('selected: ', selected.join());

Answer 2

To transfer items from one array to another, you can make use of the Array#splice method:

var myNumbers = [10, 20, 30, 40, 50];

// remove 2 elements starting from index 1, and assign them to selected
var selected = myNumbers.splice(1, 2); 

console.log('myNumbers: ', myNumbers.join());

console.log('selected: ', selected.join());

Answer 3

Answer №2

In theory, if you possess a deck that has already been shuffled, simply remove the desired number of cards from the top:

let numCards = 2 // or 5, any number you prefer
let selectedCards = deck.slice(0, numCards);
console.log(selectedCards);

Answer 4

In theory, if you possess a deck that has already been shuffled, simply remove the desired number of cards from the top:

let numCards = 2 // or 5, any number you prefer
let selectedCards = deck.slice(0, numCards);
console.log(selectedCards);

Select the array using the .shift method

Answer №1

Answer №2

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