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Lynx
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      • PerformanceObserver BTS

      The PerformanceObserver is used to observe performance events and receive notifications when Lynx Engine generates performance entries. It must be created through lynx.performance.createObserver() and bind with a callback function for handling received performance entries upon creation.

      Instance methods

      PerformanceObserver.observe()

      Specify a set of performance entry types to observe and start observing.

      PerformanceObserver.disconnect()

      Stop receiving performance entries.

      Examples

      Creating a PerformanceObserver

      The following example creates a PerformanceObserver watching for metric.fcp and pipeline entries.

      performance-apisrc/simple-observe/index.tsx
      Code
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      Except as otherwise noted, this work is licensed under a Creative Commons Attribution 4.0 International License, and code samples are licensed under the Apache License 2.0.