_.drop(array, [n=1])
裁剪数组中的前 N 个数组，返回剩余的部分。
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<title>数组裁剪</title>
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<body>
<script src="https://cdn.bootcss.com/lodash.js/4.17.10/lodash.min.js"></script>
<script type="text/javascript">
var aa = _.drop([1, 2, 3], 2);;
console.log(aa);
//[3]
</script>
</body>
</html>