ES2015 Destructuring Assignment Example -- Basic object destructuring assignment for arguments with defaults using a Dagwood Sandwich

dogwood-sandwich-arguments-defaults.js

function makeCheeseSandwich({bread, cheeses, condiments = ['mustard']}) {
  return {bread, cheeses, condiments};
}

console.log(makeCheeseSandwich(dagwoodSandwich));
// output: { bread: 'rye', cheeses: [ 'cheddar' ], condiments: [ 'mustard' ] }