<!DOCTYPE html>
<html>
<head>
<title> </title>
</head>
<body>
<script type="text/javascript">
var i;
var j
var cnt=5;
var y
var arr=[];
for(y=0;y<cnt;y++){
a:
for(i=0;i<6;i++){
arr[i]=parseInt(Math.random()*45+1);
for(j=0;j<i;j++){
if(arr[i]==arr[j]){
continue a;
}
}
}
for(i=0;i<6;i++){
document.write(arr[i]+" ");
}
document.write("<br>");
}
</script>
</body>
</html>
The code written by C has been converted into JavaScript.
I tried to use goto instead of continue, and I kept getting duplicate numbers.
How do I use the goto sentence?
Also, I would appreciate it if you could tell me how to use the continuation or break statement.
It doesn't have to be goto. <
javascript c
a:
for(i=0;i<6;i++){
process.stdout.write("a: " + i +"\n");
arr[i]=parseInt(Math.random()*45+1);
for(j=0;j<i;j++){
if(arr[i]==arr[j]){
i--; // perform i-- because this index needs to be re-exposed before continuing.
continue a;
}
}
}
If you choose 6 out of 45 numbers to avoid overlapping, you can do the following:
/**
* Function that shuffle the order of array arr
*/
function shuffle(arr)
{
for(var i=arr.length;i>0;i--)
{
// Select any location pick with 0<=pick<i.
var pick = Math.floor(Math.random()*i);
vartmp = arr[i-1]; // i-1th value and
arr[i-1] = arr[pick]; // reorder the values at the selected pick's location
arr[pick] = tmp;
}
}
// I'm going to make an array of lotto numbers
var lotto = [];
for(var i=1;i<=45;i++) {
lotto[i-1] = i;
}
// in a jumble of arrangements
shuffle(lotto);
// Choose 6 from the front
for(i=0;i<6;i++) {
document.write(arr[i]+" ");
}
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