#7: Creating random numbers

// Parameters:

// N/A

// In practice:

console.log(Math.random()); // returns a number from 0 to 0.9999999999999...

// Code: 

console.log(Math.floor(Math.random() * 10) + 1);

// Why does it work? (I guess)

// Considering any X random number:

// 1. The smallest number is 0 * 10 = 0, so Math.floor() returns 0 if X = 0
// 2. and the greatest number is  1 * 10 = 10, so floor returns 9 if X = 10
// 3. Hence, we add 1 to the min value (0) so that it becomes 1 and to the max value (9) so that it becomes 10

// Code: 

console.log(Math.trunc(Math.random() * 6) + 1)

// Why does it work? (I guess)

// 1. Return a random number between 0 and 0 and 0.999999999999....

console.log(Math.random());

// 2. Return a random number between 0 and 5

console.log(Math.random() * 6);

// 3. Remove the decimal part

console.log(Math.trunc(Math.random() * 6))

// 5. Up to this point, the max value is 5 (not 6, as expected)

// A) Math.random() returns a value close to 1, but NOT 1 itself, hence the maximum value is 6 * 0.99999999, which will return 5 and not 6
// B) So, that's why we have to +1 
// C) Hence, min becomes 0 + 1  (1) and max becomes 5 + 1 (6)

console.log(Math.trunc(Math.random() * 6) + 1)

// Code: 

console.log(Math.floor(Math.random() * 6) + 1)

// Why does it work? (I guess)

// 1. Return a random number between 0 and 0.999999999999....

console.log(Math.random());

// 2. Return a random number between 0 and 5

console.log(Math.random() * 6);

// 3. Round down X:

console.log(Math.floor(Math.random() * 6));

// 6. Now, max is 5 

console.log(Math.floor(Math.random() * 6) +1);