react-forum

Cannot display table using React

MMeraj

12/28/2022

Hi, I am trying to display a simple table but it is showing me error. Been stuck on this for two weeks. Here is my code on codesandbox: https://codesandbox.io/s/angry-gauss-lvsrn3?file=/src/App.js Embedding it here too:

import "./styles.css";

export default function App() {
  const products = ["A", "B", "C"];
  const counts = [3, 4, 6];

  let userArranged = [];
  for (let i = 0; i < products.length; i++) {
    userArranged[i] = { product: products[i], counts: counts[i] };
  }

  return (
    <div className="cart-table">
      <div className="heading-cart">Your cart:</div>
      <div className="header-cart">
        <div className="table-header-cell">Product</div>
        <div className="table-header-cell">Count</div>
      </div>
      <div className="cart-products">
        {userArranged[0].map((productArray) => (
          <div className="actual-cart">
            {productArray.map((prod) => (
              <div className="table-body-cell">{prod}</div>
            ))}
          </div>
        ))}
      </div>
    </div>
  );
}

import "./styles.css";

export default function App() {
  const products = ["A", "B", "C"];
  const counts = [3, 4, 6];

  let userArranged = [];
  for (let i = 0; i < products.length; i++) {
    userArranged[i] = { product: products[i], counts: counts[i] };
  }

  return (
    <div className="cart-table">
      <div className="heading-cart">Your cart:</div>
      <div className="header-cart">
        <div className="table-header-cell">Product</div>
        <div className="table-header-cell">Count</div>
      </div>
      <div className="cart-products">
        {userArranged[0].map((productArray) => (
          <div className="actual-cart">
            {productArray.map((prod) => (
              <div className="table-body-cell">{prod}</div>
            ))}
          </div>
        ))}
      </div>
    </div>
  );
}

The error: userArranged[0].map is not a function Can someone help me out please?

Solution:

Message Not Public

Jump to solution

UUUnknown User

12/28/2022

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Aaprillion

12/28/2022

{ product: products[i], counts: counts[i] } is an Object and non-array objects don't have Array.prototype.map() you are not using counts in the returned value, so no idea what you are trying to achieve to help with a solution ¯\_(ツ)_/¯ for a general advice for debugging, I recommend to log any value that looks suspicious (when you believe it should be something, but the error message sounds like it's something else), e.g. console.log(userArranged[0])

MMeraj

12/28/2022

Thanks for replying. I just want a table with Products and Counts as two columns with their respective values under them. Products Counts A 3 B 4 C 6 I also tried userArranged.push([products, counts]) to have a different array but it gave me two rows, first one filled with all products and second one with all counts.

Solution

UUUnknown User

12/28/2022

Message Not Public

MMeraj

12/29/2022

Thank you so much. This did it. Much obliged!

UUUnknown User

12/29/2022

Message Not Public