PerformanceMark
PerformanceMark
is an abstract interface for performance entries
with an entry type
of "mark
". Entries of this type are created by calling performance.mark()
to add a named DOMHighResTimeStamp
(the mark) to the browser's performance timeline.
The PerformanceMark
interface has no properties, no methods nor any constructors. However, it qualifies and constrains the following PerformanceEntry
properties for "mark
" type performance entries
: name
, entryType
, startTime
and duration
.
Properties
This interface has no properties but it extends the following PerformanceEntry
properties by qualifying/constrainting the properties as follows:
entryType
- Set to "
mark
". name
- Set to the the
name
given to the mark when it was created via a call toperformance.mark()
. startTime
- Set to the
DOMHighResTimeStamp
whenperformance.mark()
was called. duration
- Set to "
0
" (a mark has no duration).
Methods
This interface has no methods.
Example
See the example in Using the User Timing API.
Specifications
Specification | Status | Comment |
---|---|---|
User Timing The definition of 'PerformanceMark' in that specification. |
Editor's Draft | |
User Timing The definition of 'PerformanceMark' in that specification. |
Recommendation | Basic definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support. | 43 | 41 | 10 | 33 | Not supported |
Feature | Android | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support. | 46 | 42 | 42 | 10 | 33 | Not supported |
See also
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/performancemark