在此页

• 句法
• 规范
• 浏览器兼容性
• 相关话题

这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

instrumentKey 只读特性在 PaymentRequestEvent interface returns a PaymentInstrument object reflecting the payment instrument selected by the user or an empty string if the user has not registered or chosen a payment instrument.

句法

var instrumentKey = paymentRequestEvent.instrumentKey
					

值

A PaymentInstrument 对象。

规范

规范	状态	注释
Payment Handler API The definition of 'instrumentKey' in that specification.	工作草案	初始定义。

浏览器兼容性

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
instrumentKey	Chrome 60 Disabled 60 Disabled Disabled ). To change preferences in Chrome, visit	Edge ≤79 Disabled ≤79 Disabled Disabled From version ≤79: this feature is behind the #service-worker-payment-apps preference (needs to be set to 启用 ).	Firefox No	IE ?	Opera No	Safari ?	WebView Android No	Chrome Android 60 Disabled 60 Disabled Disabled ). To change preferences in Chrome, visit	Firefox Android No	Opera Android No	Safari iOS ?	Samsung Internet Android No

图例

完整支持

完整支持

不支持

不支持

兼容性未知 ?

兼容性未知

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

用户必须明确启用此特征。

用户必须明确启用此特征。

元数据

• 最后修改： Mar 18, 2019

相关话题

1. 支付请求 API
2. PaymentRequestEvent
3. 构造函数

   1. PaymentRequestEvent()
4. 特性

   1. paymentRequestId
   2. paymentRequestOrigin
   3. topOrigin
   4. total
5. 方法

   1. openWindow()
   2. respondWith()
6. Related pages for Payment Request API

   1. HTMLIFrameElement.allowPaymentRequest
   2. MerchantValidationEvent
   3. PaymentAddress
   4. PaymentMethodChangeEvent
   5. PaymentRequest
   6. PaymentRequestUpdateEvent
   7. PaymentResponse