Stumped! - Stuck on JavaScript Blackjack function [SOLVED]

1

Alright folks, currently in the Ask step of Read-Search-Ask. I’m creating a Blackjack function for the front-end JavaScript exercises using if/else if statements and I need guidance. I did see that the “Hint” page has a solution, but I’m determined to ask around and try a little harder to figure out the solutions myself, and figure out why my code is doing what it’s doing.

var count = 0;

function cc(card) {
  if (card === 2 || 3 || 4 || 5 || 6 && count > 0) {
    return (count++ + " Bet");
  } else if (card === 2 || 3 || 4 || 5 || 6 && count <= 0) {
    return (count++ + " Hold");
  }
  if (card === 7 || 8 || 9 && count > 0) {
      return (count + " Bet");
    } else if (card === 7 || 8 || 9 && count <= 0) {
      return (count + " Hold");
  }
  if (card === 10 || "J" || "Q" || "K" || "A" && count > 0) {
      return (count-- + " Bet");
    } else if (count <= 0) {
      return (count-- + " Hold");
}
}

cc(2); cc(2); cc(10);

What is currently happening, is that each argument passed adds 1 to the variable count, if we’re using zero-based indexing. I think something is wrong with my if statements, but I can’t tell. I’d love a different outlook for this one!

Thanks,

Julianna

2

Change this to if (card > 1 && card < 7 && count > 0)
Do the same for the other if conditions. You have to specify what is being compared in each “or”. For example if I wanted to test if card was 1 or 2 it would look like

if(card === 1 || card === 2) {
  //...do stuff
}
4

I’ve been staring at my if statements and thought something was wrong! Makes much more sense, thanks! I think now my trouble lies in adding the increment or decrement appropriately, but at least the 7 through 9 arguments are passing correctly.

5

Thanks! I’m trying to simplify the “if” statement right now for values 10, “J”, “Q”, “K” and “A”. I’m also trying to figure out a way to use increments or decrements on count before returning any values, but I’m not sure if that’s possible.

7

I’m not quite ready to see the answer, but I’ll return to this should I need it. Thank you!

8

Thanks every for all of your input and explanations. Stepping away from this problem for a few hours, reading everyone’s code and reviewing the if/else basics helped immensely with figuring out what was wrong with my original function. I’m going to try to find some similar problems I can practice until i can really get the swing of these statements. Here is my final code:

var count = 0;

function cc(card) {
  var result = "";
    if (card >= 2 && card <= 6) {
      count++;
      } else if (card === 10 || card === "J" || card === "Q" || card === "K" || card === "A") {
      count--;
      }
    if (count <= 0) {
      result = count + " Hold";
    } else {
      result = count + " Bet";
    }
  return result;
}