x 为真的随机 JSON

Question

我有一个 JSON 文件 (https://api.myjson.com/bins/o7s1v)，我想使用 javascript 来获取满足条件的随机对象，例如“egg-group-1”等于“monster”的随机对象。

我该怎么做呢？

Answer 1

如果你想找到第一个匹配，使用 find()，如果你想找到一个随机的，你可以使用 filter() 然后访问一个随机元素：

let arr = [{"id":1,"dex":1,"form":"null","mon":"Bulbasaur","type1":"Grass","type2":"Poison","egg-group-1":"Monster","egg-group-2":"Grass","legend":"FALSE","gen":1},{"id":2,"dex":2,"form":"null","mon":"Ivysaur","type1":"Grass","type2":"Poison","egg-group-1":"Monster","egg-group-2":"Grass","legend":"FALSE","gen":1}];

let first = arr.find(v => v['egg-group-1'] === 'Monster'); // will return the first one
console.log(first);

let random = arr.filter(v => v['egg-group-1'] === 'Monster');
console.log(random[Math.floor(Math.random()*random.length)]);