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DMD-3475/index-2.html

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title></title>
</head>
<body>
<script>
function range(start, end, step = start <= end ? 1 : -1) {
let result = [];
for (let i = start; step >= 0 ? i <= end : i >= end; i+=step) {
result.push(i);
}
return result;
}
function sum(numbers) {
result = 0;
for (let num of numbers) {
result += num;
}
return result;
}
console.log(range(1, 10));
console.log(range(1, 10, 2));
console.log(range(5, 2, -1));
console.log(range(5, 2));
console.log(range(10, 1, -3));
console.log(sum(range(1, 10)));
console.log(sum(range(1, 10, 2)));
console.log(sum(range(10, 1, -3)));
</script>
</body>
</html>