let myLib = (function(){
  this.libName = 'in lib';

  let obj = {
    libName: 'in obj',
    toCaps() {
      return this.libName.toUpperCase();
    }
  };

  console.log(obj.toCaps());  // IN OBJ (bound to the object)
  boundToCaps = obj.toCaps.bind(this);
  console.log(boundToCaps());  // IN LIB (bound to the myLib scope)
})();