我有一堆数字有多个小数点(所以它们真的是字符串)。但是,我想将它们分类为数字。
I've got a bunch of "numbers" that have multiple decimal points (so they're really strings). However, I want to sort them as if they were numbers.
1.1.1 10.2.3 2.6.7 21.10.4 3.10.12 4.11.5 4.1.16 6.4.23我希望它们按第一组数字(在第一个小数点之前)排序,然后按第二组排序,然后排在第三组(使用继续第四组或更多的可能性)。他们应按此顺序:
I want them to sort by the first set of numbers (before the first decimal point), then by the second set, then by the third (with the possibility of it continuing for a fourth set or more). They should go in this order:
1.1.1 2.6.7 3.10.12 4.1.16 4.11.5 6.4.23 10.2.3 21.10.4使用JS执行此操作的最佳方法是什么?我想我可能需要将每个数字分成一个数组,但也许有更好的方法。想法?
What is the best way to do this using JS? I'm thinking I'll probably need to break each number into an array, but there maybe a better way. Ideas?
推荐答案我认为这样的事情可以解决问题:
I think something like this should do the trick:
nums.sort(function(a, b) { var nums1 = a.split("."); var nums2 = b.split("."); for (var i = 0; i < nums1.length; i++) { if (nums2[i]) { // assuming 5..2 is invalid if (nums1[i] !== nums2[i]) { return nums1[i] - nums2[i]; } // else continue } else { return 1; // no second number in b } } return -1; // was missing case b.len > a.len });更新 继承人
当 var nums = ['1.1.1',$ b时$ b'2.6.7.3.2','2.6.7','2.6.7.3','2.6.7.1','6.4.23', '2.7']
按此方式排序=> ['1.1.1','2.6 .7.1','2.6.7.3.2','2.6.7','2.6.7.3','2.7','6.4.23']
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使用多个小数点对“数字”进行排序
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