normalize-version/lib/normalize-version.js

Formats a version number to be a required number of points

// Generated by CoffeeScript 1.10.0
(function() {
  module.exports = function(version, numberOfPoints) {
    var n;
    if (numberOfPoints == null) {
      numberOfPoints = 3;
    }
    if (version == null) {
      return null;
    }
    version = String(version);
    if (!version.match(/\d/)) {
      return null;
    }
    n = version.split(/\./);
    if (n.length === 1 && n[0] === '') {
      return null;
    }
    while (n.length < numberOfPoints) {
      n.push('0');
    }
    return n.slice(0, numberOfPoints).join('.');
  };

}).call(this);