PerformanceObserverEntryList
The PerformanceObserverEntryList
interface is a list of peformance events that were explicitly observed via the observe()
method.
Methods
PerformanceObserverEntryList.getEntries()
- Returns a list of explicitly observed
PerformanceEntry
objects based on the given filter. PerformanceObserverEntryList.getEntriesByType()
- Returns a list of explicitly observed
PerformanceEntry
objects of the given entry type. PerformanceObserverEntryList.getEntriesByName()
- Returns a list of explicitly observed
PerformanceEntry
objects based on the given name and entry type.
Example
// Create observer for all performance event types
// list is of type PerformanceObserveEntryList
var observe_all = new PerformanceObserver(function(list, obs) {
var perfEntries = list.getEntries();
for (var i = 0; i < perfEntries.length; i++) {
print_perf_entry(perfEntries[i]);
// do something with it
}
})
Specifications
Specification | Status | Comment |
---|---|---|
Performance Timeline Level 2 The definition of 'PerformanceObserverEntryList' in that specification. |
Candidate Recommendation | Initial definition. |
Browser compatibility
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