Question

How to unpack fields from object passed as a function parameter in JavaScript

Answer 1

const worker = {
  id: 74783,
  job: 'Developer',
  fullName: {
    firstName: 'Albus',
    lastName: 'Dumbledore'
  }
};

function workerId({id}) {
  return id;
}

function workerDetails({job, fullName: {firstName: name}}) {
  return `${name} is a ${job}`;
}

console.log(workerId(worker)); // 74783
console.log(workerDetails(worker));  // "Albus is a Developer"



/*
run:

74783
"Albus is a Developer"

*/

 

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