javascript提示编号，如果答案错误则继续提示

Question

我需要提示访问者输入 1 到 100 之间的整数，然后继续提示，直到输入有效数字。

这是我的:

<script>

var number = parseInt(prompt("Please enter a number from 1 to 100", ""));

if (number < 100) {
    document.write("Your number (" + number + ") is matches requirements", "");
} else if (isNaN(number)) {
    parseInt(prompt("It is not a number. Please enter a number from 1 to 100", ""));
} else {
    parseInt(prompt("Your number (" + number + ") is above 100. Please enter a number from 1 to 100", ""));
}

</script>

它识别号码但当号码错误时无法重新询问。你能帮我解释一下你添加了什么吗？

非常感谢。

Answer 1

像这样的东西应该可以解决问题:

do{
    var selection = parseInt(window.prompt("Please enter a number from 1 to 100", ""), 10);
}while(isNaN(selection) || selection > 100 || selection < 1);