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JavaScript · Q8

Invocation And Performance Navigation

Programming · JavaScript · question 8

Q8

Which of the following is a read-only property?

A.
PerformanceTiming.navigationStart
B.
PerformanceTiming.fetchStart
C.
PerformanceTiming.navigationStart & PerformanceTiming.fetchStart
Answer
D.
None of the mentioned

Answer: Option C

Solution

Answer: Option C
Solution:
Both PerformanceTiming.navigationStart and also the PerformanceTiming.fetchStart are a read-only properties.