随机JSON，其中x为真

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，例如随机对象，其中＆＃34; egg-group-1＆＃34;等于＆＃34;怪物＆＃34;。

我将如何做到这一点？

Answer 1

如果要查找第一个匹配项，请使用find（），如果要查找随机项，可以使用filter（）然后访问随机元素：

＆＃13;

＆＃13;

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)]);

＆＃13;

＆＃13;

＆＃13;