javascript 比较版本号的js

Posted 2021-05-04

function cmpVersions (a, b) {  var i, l, diff, segmentsA, segmentsB;	segmentsA = a.replace(/(\.0+)+$/, '').split('.');  segmentsB = b.replace(/(\.0+)+$/, '').split('.');  l = Math.min(segmentsA.length, segmentsB.length);	for (i = 0; i < l; i++) {      diff = parseInt(segmentsA[i], 10) - parseInt(segmentsB[i], 10);      if (diff !== 0) {          return diff;      }    }    return segmentsA.length - segmentsB.length;}