获取URL地址参数

构造函数

new URLSearchParams('https://example.com?foo=1&bar=2')

 实例属性

size

实例方法

append()

let url = new URL('https://example.com?foo=1&bar=2');
let params = new URLSearchParams(url.search.slice(1));

//添加第二个 foo 搜索参数。
params.append('foo', 4);
//查询字符串变成：'foo=1&bar=2&foo=4'

delete()

let url = new URL('https://example.com?foo=1&bar=2');
let params = new URLSearchParams();

//参数：name
params.delete('foo');

entries()

// 创建一个测试用 URLSearchParams 对象
var searchParams = new URLSearchParams("key1=value1&key2=value2");

// 显示键/值对
for(var pair of searchParams.entries()) {
   console.log(pair[0]+ ', '+ pair[1]);
}

// 结果

key1, value1
key2, value2

get()

let params = new URLSearchParams(document.location.search.substring(1));
let name = params.get("name"); // is the string "Jonathan"
let age = parseInt(params.get("age"), 10); // is the number 18

getAll()

let url = new URL('https://example.com?foo=1&bar=2');
let params = new URLSearchParams(url.search.slice(1));

//为 foo 参数添加第二个值
params.append('foo', 4);

console.log(params.getAll('foo')) //输出 ["1","4"]

接口参考地址：

URLSearchParams - Web API 接口参考 | MDN (mozilla.org)https://developer.mozilla.org/zh-CN/docs/Web/API/URLSearchParams