Question

我看了几个例子，但是我不明白。我有一个平面数据集，我想将其转换成打字稿中的嵌套结构。我理解/相信我将需要使用.map和.forEach，但我对此却一无所知。

我有这样的数据：

New.CleanUp.ReferenceOTU120578

，我希望它看起来像：

origData = [
        {name: 'Grass', value: 'bulbasaur-0', viewValue: 'Bulbasaur'},
        {name: 'Grass', value: 'oddish-1', viewValue: 'Oddish'},
        {name: 'Grass', value: 'bellsprout-2', viewValue: 'Bellsprout'},
        {name: 'Water', value: 'squirtle-3', viewValue: 'Squirtle'},
        {name: 'Water', value: 'psyduck-4', viewValue: 'Psyduck'},
        {name: 'Water', value: 'horsea-5', viewValue: 'Horsea'},
        {name: 'Fire', value: 'charmander-6', viewValue: 'Charmander'},
        {name: 'Fire', value: 'vulpix-7', viewValue: 'Vulpix'},
        {name: 'Fire', value: 'flareon-8', viewValue: 'Flareon'},
        {name: 'Psychic', value: 'mew-9', viewValue: 'Mew'},
        {name: 'Psychic', value: 'mewtwo-10', viewValue: 'Mewtwo'},
  ];

Answer 1

如果您使用Underscore之类的实用程序库，这会容易得多。

import * as _ from "underscore";

let groups1 = _.groupBy(origData, (p) => p.name);
let pokemonGroups = Object.keys(groups1).map((type) =>
    ({ name: type, pokemon: groups1[type].map(({name, ...rest}) => rest) }));

角度平面数据到对象数组

1 个答案: