What is the command for producing a random value out of a set of available values?

Question

Please help.

Answer 1

store all your variables you want into an array.

use alert or console.log, with the random function to go from 0, to the array length - 1.

this will randomly show a value from any of the variables you stored into the array.

Answer 2

return a number between 1 & 100:
>>> Math.floor((Math.random() * 100) + 1);
return a number between 50 & 150:
>>> Math.floor((Math.random() * 100) + 50);

*Note:: Math.random ALWAYS returns a number between 0 and 1