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What is the purpose of creating a data frame?

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What is the purpose of creating a data frame?

(a) Hold the page render time

(b) Hold the load time

(c) Hold the page render time & load time

(d) Hold the reload time

I have been asked this question in final exam.

My doubt is from Script Loading topic in portion Invocation and Performance Navigation of JavaScript

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Right choice is (c) Hold the page render time & load time

For explanation: A Data frame is a two-dimensional data structure, i.e., data is aligned in a tabular fashion in rows and columns. You can create a data frame to hold the mean page render times for each test URL, and a data frame to hold the mean load time for each test URL.

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