CODEWITHSUNDEEP
typescript
János
János

Reputation: 35050

TypeScript: How to make object from array of tuple?

I have following array of tuple, need to make an object from, how?

Object.keys(invoiceItems)?.map(function (key, item) {
  [key, 1];
}

I know in Swift Dictionary(uniqueKeysWithValues: method call I need, what about in Typescript?

Upvotes: 0

Views: 1063

Answers (2)

Wasit Shafi
Wasit Shafi

Reputation: 1539

Here I assume your invoice items with some dummy data, below are 2 ways to create object with key:value

const invoiceItems = [[101, 'Coffee'], [102, 'Tea'], [103, 'Book']]

// Method 1
const o =  Object.fromEntries(invoiceItems);
console.log('o :', o)


// Method 2
const o2 = {}
Object.keys(invoiceItems).forEach(i => o2[invoiceItems[i][0]] = invoiceItems[i][1])
console.log('o2 :', o2)

Upvotes: 0

Parzh from Ukraine
Parzh from Ukraine

Reputation: 9873

Assuming that by tuples you mean two-element arrays, you can use Object.fromEntries to create such object:

const entries = [
  [ "value1", 42 ],
  [ "value2", 17 ],
  [ "value3", 51 ],
];

const object = Object.fromEntries(entries);

console.log(object);

Upvotes: 3

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