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DOMHighResTimeStamp 是一个double类型,用于存储时间值。该值可以是离散的时间点或两个离散时间点之间的时间差。T单位为毫秒 ms (milliseconds) ,应准确至5微秒 µs (microseconds)。但是,如果浏览器无法提供准确到5微秒的时间值(例如,由于硬件或软件的限制), 浏览器可以以毫秒为单位的精确到毫秒的时间表示该值。

I无法获得所需精度的实现(例如,如果底层系统不支持),则只能准确到1毫秒。

Properties

This type has no properties.

Methods

This type has no methods.

Specifications

Specification Status Comment
High Resolution Time Level 2
DOMHighResTimeStamp
Candidate Recommendation Stricter definitions of interfaces and types.
High Resolution Time
DOMHighResTimeStamp
Recommendation Initial definition.

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 6 7.0 (7.0) 9 15.0 8
Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support (Yes) 15.0 (15.0) 9 15.0 9

See also

文档标签和贡献者

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