JavaScript Array: Order Nested Object by Key [duplicate]

Question

This question already has answers here:

Sorting an array of objects by property values (27 answers)

How to sort strings in JavaScript (16 answers)

Sort Array by ISO 8601 date (8 answers)

Closed 3 years ago.

I have the following nested object. I would like to iterate through every item (latest.sentTime) and then sort the object itself by "sentTime". So that the most recent message is on top. How can I achieve this?

In the following example, "0" and "1" need to be swapped basically, since "1" has a more recent "sentTime".

yourArray.sort(({ latest: { sentTime: a } }, { latest: { sentTime: b } }) => b.localeCompare(a));. — Sebastian Simon
– Sebastian Simon, Commented Feb 6, 2022 at 13:29

Majed Badawi · Accepted Answer · 2022-02-06 13:30:39Z

2

Using Array#map, iterate over the array to get latest.sentTime
Using Array#sort and Date, sort the items

const arr = [ 
  { latest: { sentTime: '2022-02-05T19:15:32.000Z' } },
  { latest: { sentTime: '2022-02-06T22:12:00.000Z' } } 
];

const sentTimes = arr
  .map(({ latest }) => latest.sentTime)
  .sort((a, b) => new Date(b) - new Date(a));

console.log(sentTimes);

answered Feb 6, 2022 at 13:30

Majed Badawi

28.5k4 gold badges30 silver badges56 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

JavaScript Array: Order Nested Object by Key [duplicate]

1 Answer 1

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Linked

Related