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