Performance: getEntriesByName() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2015.

Note: This feature is available in Web Workers.

The getEntriesByName() method returns an array of PerformanceEntry objects currently present in the performance timeline with the given name and type.

If you are interested in performance entries of certain types, see getEntriesByType(). For all performance entries, see getEntries().

Note: This method does not notify you about new performance entries; you will only get entries that are present in the performance timeline at the time you call this method. To receive notifications about entries as they become available, use a PerformanceObserver.

The following entry types are not supported by this method at all and won't be returned even if entries for these types might exist:

To access entries of these types, you must use a PerformanceObserver instead.

Syntax

js
getEntriesByName(name)
getEntriesByName(name, type)

Parameters

name

The name of the entries to retrieve.

type Optional

The type of entries to retrieve such as "mark". The valid entry types are listed in PerformanceEntry.entryType.

Return value

An Array of PerformanceEntry objects that have the specified name and type. The items will be in chronological order based on the entries' startTime. If no objects meet the specified criteria, an empty array is returned.

Examples

Logging performance markers

The following example logs all PerformanceMark objects named "debug-mark".

js
const debugMarks = performance.getEntriesByName("debug-mark", "mark");
debugMarks.forEach((entry) => {
  console.log(`${entry.name}'s startTime: ${entry.startTime}`);
});

Specifications

Specification
Performance Timeline
# dom-performance-getentriesbyname

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
getEntriesByName

Legend

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Full support
Full support
Requires a vendor prefix or different name for use.
Has more compatibility info.

See also