PositionOptions.maximumAge - Web APIs 编辑

Secure context

This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The PositionOptions.maximumAge property is a positive long value indicating the maximum age in milliseconds of a possible cached position that is acceptable to return. If set to 0, it means that the device cannot use a cached position and must attempt to retrieve the real current position. If set to Infinity the device must return a cached position regardless of its age.

Syntax

positionOptions.maximumAge = timeLength

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• Using geolocation
• The PositionOptions interface it belongs to.