compareVersion.js 539 B

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  1. function compareVersion(v1, v2) {
  2. const v1Array = v1.split('.');
  3. const v2Array = v2.split('.');
  4. const len = Math.max(v1Array.length, v2Array.length);
  5. while (v1Array.length < len) {
  6. v1Array.push('0');
  7. }
  8. while (v2Array.length < len) {
  9. v2Array.push('0');
  10. }
  11. for (let i = 0; i < len; i++) {
  12. const num1 = parseInt(v1Array[i], 10);
  13. const num2 = parseInt(v2Array[i], 10);
  14. if (num1 > num2) {
  15. return 1;
  16. } if (num1 < num2) {
  17. return -1;
  18. }
  19. }
  20. return 0;
  21. }
  22. module.exports = compareVersion;