how call method js that contains promise chain code example

Example: javascript promise chain

// base case 
promise
  .then(...)
  .then(...)
  .then(...)
  .catch(...)

//real world
coinflip(10)
  .then(betAgain)
  .then(betAgain)
  .then(betAgain)
  .then(result => {
    console.log(`OMG, WE DID THIS! TIME TO TAKE ${result} HOME!`);
  })
  .catch(handleRejection);