题解 | #判断质数#
判断质数
https://www.nowcoder.com/practice/b936f737e2b34b3199a7c875446edd06
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8>
</head>
<body>
<script type="text/javascript">
// 补全代码
Number.prototype._isPrime = function () {
let isPrime = true
for (let i = 2; i < this - 1; i ++) {
if (this % i === 0) {
isPrime = false
break
}
}
return isPrime
}
</script>
</body>
</html>
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