imp_methods.js

Number.method('integer', function ( ) {
  return Math[this < 0 ? 'ceil' : 'floor'](this);
});

String.method('trim', function ( ) {
  return this.replace(/^\s+|\s+$/g, '');
});

Function.prototype.method = function (name, func) {
  this.prototype[name] = func;
  return this;
};