URLSearchParams()

创建

// 地址
let url = new URL('https://example.com?foo=1&bar=2')
let params = new URLSearchParams(url.search)
for (let v of params) {
  console.log(v)
}
// map结构、 二维数组
let map = new Map()
map.set('name', '赵敏')
map.set('sex', 'woman')
for (let v of map) {
  console.log(v)
}
// 对象
let person = {
  name: '张无忌',
  age: 20,
  skill: '乾坤大挪移'
}
let personParams = new URLSearchParams(person)
for (let v of personParams) {
  console.log(v)
}

方法

append()

let url = new URL('https://example.com?foo=1&bar=2')
let params = new URLSearchParams(url.search)
params.append('topic', 3)

delete()

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

entries()

keys()

values()

get()

getAll()

has()

set()

// 如果没有，则添加；如果有，则替换

let url = new URL('https://example.com?foo=1&bar=2')
let params = new URLSearchParams(url.search)
params.set('topic', 18)

sort()

toString()