Some Helper functions for NodeJS

node_hlprs.js

module.exports = {
  removeWhitespace: function(str){
    return str.replace(/\s+/g, '');
  },
  randomNumber: function(max, min){
    return Math.floor(Math.random() * max) + min;
  },
  stringRepeater: function (str, rptCnt) {
    return new Array(rptCnt).join(str);
  },
  stringFormat: function(format) {
    var args = Array.prototype.slice.call(arguments, 1);
    return format.replace(/{(\d+)}/g, function(match, number) {
      return typeof args[number] != 'undefined'
        ? args[number]
        : match
        ;
    });
  }
};