SyncManager.register()

在此页

非标
此特征是非标准的，且不在标准轨道中。不要在面向 Web 的生产站点中使用它：它不适用于每个用户。实现之间可能存在大的不兼容性，且行为将来可能改变。

SyncManager.register 方法在 SyncManager interface returns a Promise 解析为 SyncRegistration 实例。

SyncManager.register([options]).then(function(syncRegistration) { ... })

A Promise that resolves to an instance of SyncRegistration .

选项可选

An object that sets options for an instance of


									SyncRegistration

. The available options are:

allowOnBattery : A boolean that determines whether synchronization is allowed when the user agent is on a battery-powered device. The default is true .
id : The unique identifier of the specified SyncRegistration 对象。
idleRequired : A boolean that determines whether synchronization is allowed when the user agent's device is idle. The default is false .
maxDelay : The maximum delay in milliseconds before the next sync event (or the first sync event if it is periodic). The default is 0 , meaning there is no maximum delay.
minDelay : The minimum delay in milliseconds before the next sync event (or the first sync event if it is periodic). The default is 0 .
minPeriod : The minimum time in milliseconds between periodic sync events. The default is 0 , meaning events are not periodic.
minRequiredNetwork : The network condition under which background synchronization will occur. Valid values are 'network-any' , 'network-offline' , 'network-online' , 'network-non-mobile' 。默认值为 'network-online' .

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