Compare two version string - Node.js String

Node.js examples for String:Algorithm

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Description

Compare two version string

Demo Code

// http://stackoverflow.com/a/20095486/2608804
function isNewerVersion(v1, v2) {
    "use strict";
    var v1parts = v1.split('.'), v2parts = v2.split('.');
    var maxLen = Math.max(v1parts.length, v2parts.length);
    var part1, part2;
    var cmp = 0;//  w  w w  .  ja  v  a 2  s  .com
    for(var i = 0; i < maxLen && !cmp; i++) {
        part1 = parseInt(v1parts[i], 10) || 0;
        part2 = parseInt(v2parts[i], 10) || 0;
        if(part1 < part2)
            cmp = 1;
        if(part1 > part2)
            cmp = -1;
    }
    return (0 > cmp);
}

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