How can I make this calculation be performed in all the Objects of the array and return me the value multiplied by the length of the table?

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I need the calculation to be performed in all Bjects before returning the value to me by the length of the table (OBS: it’s just a challenge I’m participating, I’m not using database).

function desafio() {

  let tabela = [

    {
      preco: 10,
      qtd: 5,
      peso: 5
    },

    {
      preco: 2,
      qtd: 8,
      peso: 4
    },

    {
      preco: 25,
      qtd: 15,
      peso: 2
    }

  ]

  let clientes = [

    {
      email: "[email protected]"
    },
    {
      email: "[email protected]"
    },
    {
      email: "[email protected]"
    }

  ]

  let calculo = ((tabela[0].preco * tabela[0].qtd) * tabela[0].peso) / clientes.length

  form = Math.round(calculo)

  let total = form * tabela.length

  if (clientes.length === 0) {
    console.log("Digite o email dos clientes")
  } else {

  }

  for (let i = 0; i < clientes.length; i++) {

    console.log(`${clientes[i].email} = ${total}`)
  }
}
desafio()

javascript array function ecmascript-6

  • I did not understand the question. I could clarify?

  • I need this calculation that I declared to be done on all objects in the array before returning the multiplication by the total of items within the array. When I refer to the array objects, I refer to the items that are between { } and the calculation that I want to return from each of them is represented in "Let calculus =", just below table and client. This code I sent is returning me the calculation of only 1 object, and in the code has 3, again, represented by { }, it is interpreting that it needs to do the calculation only of the first and already multiply by table.length.

  • Put that in the question.

1 answer

1

Well, I don’t quite understand your question, but I believe that’s what you want to do.

function desafio() {

  let tabela = [

    {
      preco: 10,
      qtd: 5,
      peso: 5
    },

    {
      preco: 2,
      qtd: 8,
      peso: 4
    },

    {
      preco: 25,
      qtd: 15,
      peso: 2
    }

  ]

  let clientes = [

    {
      email: "[email protected]"
    },
    {
      email: "[email protected]"
    },
    {
      email: "[email protected]"
    }

  ]

  if (clientes.length > 0) {

    clientes.forEach((element, i) => {

      let calculo = Math.round(((tabela[i].preco * tabela[i].qtd) * tabela[i].peso) / clientes.length);

      console.log(element.email + " - total: " + calculo)

    })

  } else {
    console.log('por favor digite um email')
  }



}
desafio()

  • I think you’re right, but the question is very difficult to understand.

  • Almost that, only I need the 3 Objects add up the result of the calculation and then divide equally between emails.

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