在此页

• 句法
• 异常
• 规范
• 浏览器兼容性
• 相关话题

草案
此页面不完整。

安全上下文
此特征只可用于 安全上下文 (HTTPS)，在某些或所有 支持浏览器 .

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。

write() 方法为 NDEFWriter interface writes a specified message to a compatiable NFC tag.

句法

var sessionPromise = NDEFWriter.write(message, options);
					

参数

message

The message to be written, either DOMString or BufferSource or NDEFMessageInit .

选项 可选

• ignoreRead -- 布尔 specifying whether or not to skip reading for the activated reader objects. Will be ignored if overwrite is false .
• overwrite -- 布尔 specifying whether or not existing record should be overwritten, if such exists.
• signal -- optional AbortSignal that allows to cancell this write operation.

返回值

A Promise that resolves with undefined when and if the message transfer is successfully completed.

异常

This method doesn't throw true exceptions; instead, it rejects the returned promise, passing into it a DOMException whose 名称 is one of the following:

AbortError

The write operation was aborted with AbortSignal passed in options.

NotAllowedError

The permission for this operation was rejected or overwrite is false and there are already records on the tag.

NotSupportedError

There is no NFC adapter compatible with Web NFC, or the available NFC adapter does not support pushing messages, or connection can not be established.

NotReadableError

The UA is not allowed to access underlying NFC adapter (e.g., due to user preference).

NetworkError

Transfer failed after it already started (e.g., the tag was removed from the reader).

规范

规范	状态	注释
Web NFC, write()	草案	初始定义。

浏览器兼容性

The compatibility table on 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
write	Chrome 不支持 No	Edge 不支持 No	Firefox 不支持 No	IE 不支持 No	Opera 不支持 No	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 不支持 No	Firefox Android 不支持 No	Opera Android 不支持 No	Safari iOS 不支持 No	Samsung Internet Android 不支持 No

图例

不支持

不支持

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

元数据

• 最后修改： Mar 12, 2020

相关话题

1. NDEFWriter