I need a JavaScript code that generates 3 numbers between 1 and 10 one hundred times.It should display each set of 3 numbers on a new line separated by commas, and also display the total number of times the generated numbers were equal to 7 (also on a separate line). An example output should be formatted as follows: Number set 1 is: 10,7,8 Number set 2 is: 5,1,7 The code I have for some reason is not working
<html>
<head>
<title>Day 3 - Example 7</title>
</head
<body>
<script language="javascript">
// count number of times seven was generated
var i,num,n,num1,num2,cnt=0;
n=100;
for( i=1; i<=n; i++){
num = Math.floor(Math.random()*10+1);
num1 = Math.floor(Math.random()*10+1);
num2 = Math.floor(Math.random()*10+1);
document.write("Number Set " +i+ is + num,+ num1, +num2);
if (num == 7) {
cnt++;
> }
}
document.write("<br>Total number of Sevens: " + cnt);
</script>
</body>
</html
The code you posted seems right based on your description save for a couple of minor errors. I have cleaned it up and made it runnable right here in Stack Overflow.
var i, num, n, num1, num2, cnt = 0;
n = 100;
for (i = 1; i <= n; i++) {
num = Math.floor(Math.random() * 10 + 1);
num1 = Math.floor(Math.random() * 10 + 1);
num2 = Math.floor(Math.random() * 10 + 1);
console.log("Number Set", i, "is", num, num1, num2);
if (num == 7) {
cnt++;
}
}
console.log("<br>Total number of Sevens: " + cnt);
Note: When you use +
between a string and a number as you have done, the number will be converted into a string and then the two strings will be appended. Comma (,
) will append the values separated by spaces. I used commas throughout to make it clear and consistent. I also spaced things out a bit for readability and used console.log
so we can see the result of the formatting changes.
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