JavaScript Program to find Number Combination
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Find Number Combination
In the following example, we will find all possible combinations of numbers with 4 and 8 within the limit 500.
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<h1>Find Number Combination</h1>
<script>
var combination = 2;
var num = [4, 8];
var limit = 500;
var i, j, lastDigit, copyNum, flag, count;
//Iterate from 1 to limit
for(i = 1; i <= limit; i++)
{
copyNum = i;
count = 0;
flag = 0;
//Check each digit starting from last digit
while(copyNum != 0)
{
count++;
lastDigit = copyNum % 10;
for(j = 0; j < combination; j++)
{
if(num[j] == lastDigit)
flag++;
}
copyNum = Math.floor(copyNum / 10);
}
// result
if(count == flag)
document.write(i +", ");
}
</script>
</body>
</html>
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