[JS] How to have a randomized number correspond to a element in a Array?

Question

When the document loads, I would like a function to be called that will summon a random number from 1 to the length of the Array.

With that number I would like it to correspond to an element from the Array. i.e if the random is six, and the sixth element in the Array should be selected.

Answer 1

To select a random element from a array:

arrName[Math.floor(Math.random()*arrName.length)]

to select a random number between 0 and your array's length:

Math.floor(Math.random()*arrName.length)

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Math.random() - random number between 0 and 1