CODEWITHSUNDEEP
javascript
Mouad Ennaciri
Mouad Ennaciri

Reputation: 1269

JavaScript - Match between 2 arrays

I have 2 arrays

const statusesValues = ['progress', 'validate', 'blocked']

and

const statuses = [{status: 'progress' , id: 1}, {status: 'validate', id: 2}, {status: 'blocked', id: 3}, {status: 'no_validate', id: 4}]

I would like to get an array of id matches between the elements of the first array and the status properties of the second array.

In this example: [1, 2, 3]

What is the most elegant way to do it?

Upvotes: 0

Views: 52

Answers (4)

Kunal Mukherjee
Kunal Mukherjee

Reputation: 5853

Just use Array#prototype#filter and Array#prototype#includes

const statusesValues = ['progress', 'validate', 'blocked']
const statuses = [{
  status: 'progress',
  id: 1
}, {
  status: 'validate',
  id: 2
}, {
  status: 'blocked',
  id: 3
}, {
  status: 'no_validate',
  id: 4
}]


const res = statuses
  .filter(x => statusesValues.includes(x.status.toLowerCase()))
  .map(x => x.id);

console.log(res);

Upvotes: 1

Nina Scholz
Nina Scholz

Reputation: 386550

You could take a Map and get all id.

const
    statusesValues = ['progress', 'validate', 'blocked'],
    statuses = [{ status: 'progress', id: 1 }, { status: 'validate', id: 2 }, { status: 'blocked', id: 3 }, { status: 'no_validate', id: 4 }],
    ids = statusesValues.map(
        Map.prototype.get,
        new Map(statuses.map(({ status, id }) => [status, id]))
    );

console.log(ids);

Upvotes: 2

BJRINT
BJRINT

Reputation: 667

Assuming your statuses and Id are unique : 

const statusesId = statusesValues.map(x => statuses.find(y => y.status === x).id)

Upvotes: 1

emcee22
emcee22

Reputation: 1889

You can do it like this:

const matches = statuses
            .filter(status => statusesValues.indexOf(status.status) > -1)
            .map(status => status.id);

Is this what you are looking for?

Upvotes: 1

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