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- 'use strict';
-
- /**
- * Compare semver version numbers
- *
- * @param {String} a
- * @param {String} b
- * @api public
- */
-
- module.exports = function(a, b) {
- var i;
- var len;
-
- if (typeof a + typeof b !== 'stringstring') {
- return false;
- }
-
- a = a.split('.');
- b = b.split('.');
- i = 0;
- len = Math.max(a.length, b.length);
-
- for (; i < len; i++) {
- if ((a[i] && !b[i] && parseInt(a[i]) > 0) || (parseInt(a[i]) > parseInt(b[i]))) {
- return 1;
- } else if ((b[i] && !a[i] && parseInt(b[i]) > 0) || (parseInt(a[i]) < parseInt(b[i]))) {
- return -1;
- }
- }
-
- return 0;
- };
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