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How many properties are there in the interface PerformanceTiming?

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How many properties are there in the interface PerformanceTiming?

(a) 21

(b) 22

(c) 23

(d) 24

The question was posed to me during an online interview.

Origin of the question is Integrating the Performance Object with perfLogger in chapter Invocation and Performance Navigation of JavaScript

1 Answer

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Correct option is (a) 21

For explanation I would say: Performance.timing read-only property returns a PerformanceTiming object containing latency-related performance information. There are a total of 23 properties associated with the interface PerformanceTiming.

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