URLSearchParams:keys() 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 keys() 方法返回一个用于遍历对象中包含的所有键的迭代器。这些键都是字符串对象。

语法

js
keys()

参数

无。

返回值

返回一个 iterator

示例

js
// 建立一个测试用 URLSearchParams 对象
const searchParams = new URLSearchParams("key1=value1&key2=value2");

// 输出键值对
for (const key of searchParams.keys()) {
  console.log(key);
}

结果如下:

key1
key2

规范

Specification
URL
# dom-urlsearchparams-urlsearchparams

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
keys

Legend

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Full support
Full support
Has more compatibility info.

参见

  • URL 接口。