How to convert multidimensional array into object?

In JavaScript, converting a multidimensional array to an object requires the following steps: Use the reduce() method to generate an array of key-value pairs. Convert an array of key-value pairs to an object using the Object.assign() method.

How to convert multi-dimensional arrays to objects

In JavaScript, converting multi-dimensional arrays to objects is a common need. This can be achieved by following the steps:

1. Use the reduce() method to generate an array of key-value pairs:

const arr = [
  ['name', 'John Doe'],
  ['age', 25],
  ['city', 'New York']
];

const keyValueArr = arr.reduce((acc, cur) => {
  const [key, value] = cur;
  acc[key] = value;
  return acc;
}, {});

2. Use the Object.assign() method to convert an array of key-value pairs into an object:

const obj = Object.assign({}, ...keyValueArr);

Practical case:

Assume we have A multidimensional array containing user details as shown below:

const userData = [
  ['name', 'Jane Doe'],
  ['email', 'jane.doe@example.com'],
  ['address', '123 Main Street'],
  ['city', 'London'],
  ['country', 'United Kingdom']
];

We can convert it to an object using the above method:

const userObj = Object.assign({}, ...userData.reduce((acc, cur) => {
  const [key, value] = cur;
  acc[key] = value;
  return acc;
}, {}));

Result:

{
  name: 'Jane Doe',
  email: 'jane.doe@example.com',
  address: '123 Main Street',
  city: 'London',
  country: 'United Kingdom'
}

The above is the detailed content of How to convert multidimensional array into object?. For more information, please follow other related articles on the PHP Chinese website!