Build an Inventory Management Program - Build an Inventory Management Program Item 13

Curriculum Help
1

Tell us what’s happening:

I am now having an issue with passing Item 13. Please help me figure this out. It says "removeProduct(“FLOUR”, 5) should subtract 5 from the quantity value of the object having name equal to “flour” inside the inventory array. It is probably something simple I have missed.

Your code so far

let inventory = []
 function findProductIndex(productName){
  let index = inventory.findIndex(obj => obj.name === productName.toLowerCase());
  return index;
}


function addProduct(productObject){
  let newObjectLowerCase = productObject.name.toLowerCase();
  let index = inventory.findIndex(item => item.name === newObjectLowerCase);

  if(index !== -1){
    inventory[index].quantity += productObject.quantity;
    console.log(`${newObjectLowerCase} quantity updated`);
  } else {
    inventory.push({name:newObjectLowerCase, quantity:productObject.quantity});
    console.log(newObjectLowerCase + " added to inventory");
  }
}

function removeProductOLD(productName, productQuantity) {

  console.log('product name is ' + productName);

  let lowerName = productName.toLowerCase();
  
  let index = findProductIndex(lowerName);

  if (index === -1) {
    console.log(`${lowerName} not found`);
    return;
  }
  
  console.log(productName + ' where am i? ' + productQuantity + ' ' + lowerName + ' and index is ' + index )

  let realQuantity = inventory[index].quantity;

  console.log(productName + ' real qty ' + realQuantity);
  
  newQuantity = realQuantity - productQuantity;
  
  console.log('New qty is ' + newQuantity);
  

}

function removeProduct(productName, productQuantity) {
  let lowerName = productName.toLowerCase();
  let index = findProductIndex(lowerName);

  if (index === -1) {
    console.log(`${lowerName} not found`);
    return;
  }

  let realQuantity = inventory[index].quantity;

  if (productQuantity === realQuantity) {
    inventory.splice(index, 1);
  } else if (productQuantity > realQuantity) {
    console.log(`Not enough ${lowerName} available, remaining pieces: ${realQuantity}`);
  } else {
    /* inventory[index].quantity -= productQuantity; */
	productQuantity = realQuantity - productQuantity;
    console.log(`Remaining ${lowerName} pieces: ${productQuantity}`);
  }
}

inventory.push({name: "flour", quantity: 20});
inventory.push({name: "first", quantity: 10});
inventory.push({name: "second", quantity: 20});
inventory.push({name: "third", quantity: 30});

removeProduct("FLOUR", 5);
removeProduct("First", 5);
removeProduct("SEcond", 5);
removeProduct("THIrd", 5);

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Challenge Information:

Build an Inventory Management Program - Build an Inventory Management Program

GitHub Link: freeCodeCamp/curriculum/challenges/english/blocks/lab-inventory-management-program/66d75dd0aa65a71600dc669b.md at main · freeCodeCamp/freeCodeCamp · GitHub

2

Hi @admagee63,

Are you changing the quantity in inventory or just changing the value of the productQuantity parameter?

Happy coding

3

That is where I am confused. Step 16 works fine but this one doesn’t and they are similar.

4

Test #16 does not involve changing the quantity of an inventory item.

5

So I need to just change the value of the productQuantity parameter instead of changing the quantity in inventory?

6

That’s exactly opposite of what my initial reply to you was attempting to point out.

7

Oh duh. I don’t know why I said that backward! Too early in the day I guess, lol

8

No worries. Happy coding.