xiaochen-01

const obj = [{ id: '1', name: '广东省', children: [{ id: '11', name: '深圳市', children: [{ id: '111', name: '南山区' }, { id: '112', name: '福田区' }] }] }] const...

``` Promise.protopype.race = (promises) => { return new Promise((resolve, reject) => { promises.forEach(promise => promise.then(resolve, reject)) }); } ```

let list = [ { id: 1, address: '上海野生动物园' }, { id: 2, address: '上饶野生动物园' }, { id: 3, address: '北京巷子' }, { id: 4, address: '上海中心' }, { id:...