earnest-blog-2-example-5.js

const options = {
  async: true,
  page: 4
};

const awesomeFunction = options => {
  if (!options.offset) {
    options.offset = 10;
  }
  
  // do stuff with options
};

awesomeFunction(options);
someOtherFunction(options);
yetAnotherFunction(options);