1 and 2 appear randomly
<script type="text/javascript">
$(function(){
if (()>0.5) {
("1");
}else{
("2");
}
});
</script>
PS: Several uses of JS to generate random numbers
<script>
function GetRandomNum(Min,Max)
{
var Range = Max - Min;
var Rand = ();
return(Min + (Rand * Range));
}
var num = GetRandomNum(1,10);
alert(num);
</script>
var chars = ['0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'];
function generateMixed(n) {
var res = "";
for(var i = 0; i < n ; i ++) {
var id = (()*35);
res += chars[id];
}
return res;
}
(); The result is a random number between 0-1 (including 0, not 1)
(num); The parameter num is a numeric value, and the result of the function is the integer part of num.
(num); The parameter num is a numeric value, and the result of the function is an integer rounded by num.
Math: Mathematical object, providing mathematical calculations of data.
(); Returns a random number between 0 and 1 (including 0, not 1).
(n); Returns the smallest integer greater than or equal to n.
When using (()*10);, it mainly obtains random integers from 1 to 10, and the probability of getting 0 is extremely small.
(n); Returns the value of the integer after n rounds.
Use (()); to obtain random integers from 0 to 1 evenly.
When using (()*10);, you can basically obtain random integers from 0 to 10, and the probability of getting the minimum value 0 and maximum value 10 is half.
(n); Returns the maximum integer less than or equal to n.
When using (()*10);, random integers from 0 to 9 can be obtained evenly.