Implementing an array of objects within a Vue method

Question

Implementing an array of objects within a Vue method

I currently have an object called "Sorteio" which contains a vector of objects named "Resultado", consisting of 6 Resultados. The way I am creating instances of them is as follows:

saveSorteio() {
      var data = {
        loteria: this.sorteio.loteria,
        resultados: [
          {
            valor: this.sorteio.resultados[0].valor,
            animal: this.sorteio.resultados[0].animal
          },
          {
            valor: this.sorteio.resultados[1].valor,
            animal: this.sorteio.resultados[1].animal
          },
          /* ... */
        ]
      };
}

Is there a different method to instantiate all 6 at once, or do I need to continue calling index by index?

javascript arrays object vue.js

Answer 1

Answer №1

To extract specific properties from an array, you can utilize the #array.map() method in JavaScript.

saveSorteio() {
    var data = {
      loteria: this.sorteio.loteria,
      resultados = this.sorteio.resultados.map(({valor, animal}) => ({valor, animal}))

        /* ... */

    };
}

Here is an example to demonstrate how it works:

sorteio = {
    resultados: [
        {valor: "v1", animal: 'a1', somethingelse:"else"},
        {valor: "v2", animal: 'a2', somethingelse:"else"},
        {valor: "v3", animal: 'a3', somethingelse:"else"}
    ]
}
let newArray = sorteio.resultados.map(({valor, animal}) => ({valor, animal}))
console.log(newArray)

Answer 2

To extract specific properties from an array, you can utilize the #array.map() method in JavaScript.

saveSorteio() {
    var data = {
      loteria: this.sorteio.loteria,
      resultados = this.sorteio.resultados.map(({valor, animal}) => ({valor, animal}))

        /* ... */

    };
}

Here is an example to demonstrate how it works:

sorteio = {
    resultados: [
        {valor: "v1", animal: 'a1', somethingelse:"else"},
        {valor: "v2", animal: 'a2', somethingelse:"else"},
        {valor: "v3", animal: 'a3', somethingelse:"else"}
    ]
}
let newArray = sorteio.resultados.map(({valor, animal}) => ({valor, animal}))
console.log(newArray)

Implementing an array of objects within a Vue method

Answer №1

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