PerformanceMeasure is an abstract interface for PerformanceEntry objects with an entryType of "measure". Entries of this type are created by calling performance.measure() to add a named DOMHighResTimeStamp (the measure) between two marks to the browser's performance timeline.
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Properties
This interface has no properties but it extends the following PerformanceEntry properties by qualifying/constrainting the properties as follows:
PerformanceEntry.entryType- Returns "
measure". PerformanceEntry.name- Returns the name given to the measure when it was created via a call to
performance.measure(). PerformanceEntry.startTime- Returns a
timestampgiven to the measure whenperformance.measure()was called. PerformanceEntry.duration- Returns a
DOMHighResTimeStampthat is the duration of the measure (typically, the measure's end mark timestamp minus its start mark timestamp).
Methods
This interface has no methods.
Example
See the example in Using the User Timing API.
Specifications
| Specification | Status | Comment |
|---|---|---|
| User Timing Level 2 The definition of 'PerformanceMeasure' in that specification. |
Working Draft | |
| User Timing The definition of 'PerformanceMeasure' in that specification. |
Recommendation | Basic definition. |
Browser compatibility
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.
| Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 43 | Yes | 41 | 10 | 33 | 11 |
| Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | Yes | Yes | Yes | 42 | 33 | 11 | ? |