JavaScript method to return random number in a range (exclusive of the max limit)

Took 3 minutes and 21 seconds to code JavaScript method to return random number in a range exclusive of the max limit. Here is the code snippet.

Code:

function randomMaxExclusive(min, max) {

x = Math.floor((Math.random() * max - min) + min);

return x;

}

x = randomMaxExclusive(0, 10)

document.write(x);

Result:

4