The PerformanceObserverEntryList
interface is a list of peformance events that were explicitly observed via the observe()
method.
Note: this interface is exposed to Window
and Worker
.
PerformanceObserverEntryList.getEntries()
PerformanceEntry
objects based on the given filter.PerformanceObserverEntryList.getEntriesByType()
PerformanceEntry
objects of the given entry type.PerformanceObserverEntryList.getEntriesByName()
PerformanceEntry
objects based on the given name and entry type.// Create observer for all performance event types // list is of type PerformanceObserveEntryList var observe_all = new PerformanceObserver(function(list, obs) { var perfEntries; // Print all entries perfEntries = list.getEntries(); for (var i=0; i < perfEntries.length; i++) { print_perf_entry(perfEntries[i]); // do something with it } }
Specification | Status | Comment |
---|---|---|
Performance Timeline Level 2 The definition of 'PerformanceObserverEntryList' in that specification. | Candidate Recommendation | Initial definition. |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | 52 | ? | 57 | No | 39 | 11 |
getEntries |
52 | ? | 57 | No | 39 | No |
getEntriesByType |
52 | ? | 57 | No | 39 | No |
getEntriesByName |
52 | ? | 57 | No | 39 | No |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | No | 52 | ? | 57 | 39 | 11 | ? |
getEntries |
No | 52 | ? | 57 | 39 | No | ? |
getEntriesByType |
No | 52 | ? | 57 | 39 | No | ? |
getEntriesByName |
No | 52 | ? | 57 | 39 | No | ? |
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/PerformanceObserverEntryList