Random number function and correlation function of JS;
math . random()； The result is a random number from 0 to 1 (including 0, excluding 1).
Math.floor (number); The parameter num is a numerical value, and the function result is the integer part of num. ?
math . ceil(n)； Returns the smallest integer greater than or equal to n.
Math.round (number); Parameter num is a numerical value, and the function result is an integer rounded by num.
Therefore, the random number of 1-6 can be obtained by using the above function:
1, with math.ceil (math.random () * 6); We mainly get random integers from 1 to 6, and the probability of taking 0 is extremely small.
2. Use math. Circle (mathematics. Random () * 5+ 1), the random integer from 1 to 6 can be basically balanced, and the probability of getting the minimum value of 0 and the maximum value of 6 is less than half.
3. Use math.floor (math.random () * 6+1); , you can get a random integer of 1 to 6 in a balanced way.