将对象转换为数组的最简单方法

Question

我有一个看起来像这样的对象： descriptions: {    1: {      description: "abc"    },    2: {      description: "def"    },    3: {      description: "ghi"    }  }有没有一种简单的方法可以将该对象转换为这样的数组？： descriptions: ["abc","def","ghi"]

Answer 1

您可以 flatMap 对象的值。

var descriptions = { 1: { description: "abc" }, 2: { description: "def" }, 3: { description: "ghi" } },

    values = Object.values(descriptions).flatMap(Object.values);

console.log(values);

Answer 2

const obj = {

  descriptions: {

      1: {

        description: "abc"

      },

      2: {

        description: "def"

      },

      3: {

        description: "ghi"

      }

    }

};

console.log(Object.values(obj.descriptions).map(({description}) => description))

Answer 3

或类似的东西

function f(obj) {

    let array = []

    for (const prop in obj) {

     array.push(Object.values(obj[prop])[0])

    }

    return array

    }

Answer 4

descriptions= {

  1: {

    description: "abc"

  },

  2: {

    description: "def"

  },

  3: {

    description: "ghi"

  }

}

var keys = Object.keys(descriptions);

var values = keys.map((key) => descriptions[key].description);

values将是您要查找的数组。