URLSearchParams:get() 方法

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

备注: 此特性在 Web Worker 中可用。

URLSearchParams 接口的 get() 方法返回第一个与查询参数对应的值。

语法

js
get(name)

参数

name

要返回的参数的键名。

返回值

如果找到了给定的查询参数,则返回一个字符串;否则返回 null

示例

如果一个页面的 URL 是 https://example.com/?name=Jonathan&age=18,你可以这样解析参数“name”和“age”:

js
let params = new URLSearchParams(document.location.search);
let name = params.get("name"); // 字符串“Jonathan”
let age = parseInt(params.get("age"), 10); // 数字 18

查找一个不存在于查询字符串中的键名则返回 null:

js
let address = params.get("address"); // null

规范

Specification
URL
# dom-urlsearchparams-get

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
get

Legend

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Full support
Full support