ES6 destructuring in a loop

I attempted to extract the father's name from an array of objects and populate a new array with these names. Here is an example:

var people = [
  {
    name: "Mike Smith",
    family: {
      father: "Harry Smith",
    }
  },
  {
    name: "Tom Jones",
    family: {
      father: "Richard Jones",
    }
  }
];

var fathers = [];
for (var {family: { father: f } } of people) {
  console.log("Father: " + f);
  father.push(f);
}

Is there a non-loop solution in es6 to populate the fathers array from people?

Answer №1

One way to achieve this is by utilizing the Array.prototype.map() method along with destructuring:

const people = [
  {
    name: "Mike Smith",
    family: {
      father: "Harry Smith",
    }
  },
  {
    name: "Tom Jones",
    family: {
      father: "Richard Jones",
    }
  }
];

const fathers = people.map(({ family: { father }}) => father);

console.log(fathers);

Answer №2

Fill the fathers array with the values from the target using destructuring assignment. For more information, refer to Destructure object properties inside array for all elements

var people = [
  {
    name: "Mike Smith",
    family: {
      father: "Harry Smith",
    }
  },
  {
    name: "Tom Jones",
    family: {
      father: "Richard Jones",
    }
  }
];

var fathers = [];
[{family:{father:fathers[0]}}, {family:{father:fathers[1]}}] = people;

console.log(fathers);

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