string.js 272 Bytes

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// Generated by CoffeeScript 1.6.3
module.exports = {
  pad: function(n, width, z) {
    if (z == null) {
      z = '0';
    }
    n = n + '';
    if (n.length >= width) {
      return n;
    } else {
      return new Array(width - n.length + 1).join(z) + n;
    }
  }
};