轻松处理url的URLSearchParams

let url = '?wd=蔡徐坤&skill=篮球&year=2019';
let searchParams = new URLSearchParams(url);

for (let p of searchParams) {
  console.log(p);
}
// ["wd", "蔡徐坤"]
// ["skill", "篮球"]
// ["year", "2019"]

获取单个字段

searchParams.get('wd') // "蔡徐坤"
searchParams.get('skill') // "篮球"
searchParams.get('year') // "2019"

添加字段

searchParams.append('age', 26);
searchParams.has('age'); // true
searchParams.get('age'); // 26

删除字段

searchParams.delete('year');
searchParams.has('year'); // false

设置字段

searchParams.set('skill', '篮球 唱 跳 rap');