Question: replicating exact functionality of Math.random()

Kind of 2 quick questions:

I want to replicate the exact output of Math.random(), is this correct? real(0, 1, false)(engine);
I'm replacing Math.random() with the above because I want the output to be unpredictable, as I've seen that its possible, given a sample of outputs of Math.random(), a user can determine what the next outputs will be. I was wondering if you could confirm, for my sanity, that using this library will prevent that? I'm using nodeCrypto as an engine.

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