js如何判断是否是正整数

在JS中，有多种方法可以判断一个值是否为正整数。其中一种方法是使用取余运算符%来判断一个数字是否能被1整除，即余数是否为0。以下是一个使用该方法的代码示例<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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