Question

Which of the following property gives access to the JavaScript memory usage data?

(a) performance.memory

(b) memory(performance)

(c) performance(memory)

(d) performance()

I have been asked this question in a national level competition.

The doubt is from Invocation of the Performance Object in chapter Invocation and Performance Navigation of JavaScript

Answer 1

Correct option is (a) performance.memory

To elaborate: The property performance.memory gives access to the JavaScript memory usage data. It returns an object of type ObjectObject.