zipObject()

zipObject<K, V>(keys, values): Record<K, V>

Creates an object composed from arrays of keys and values.

💎 Why is this a Hidden Gem?

A concise way to create typed objects from parallel key-value arrays.

DEPRECATED

Use Object.fromEntries() with map() or zip() directly instead.

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Type Parameters

K: K extends PropertyKey

The type of keys (must be valid property key).

V: V

The type of values.

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Parameters

keys: readonly K[]

The property keys.

values: readonly V[]

The property values.

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Returns: Record<K, V>

The new object.

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See Also

• Object.fromEntries() - MDN
• Browser support - Can I Use

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Since

2.0.0

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Also known as

fromEntries (Effect) · fromPairs (Remeda) · objectify (Radashi) · zipObj (Ramda) · zipObject (Lodash, es-toolkit) · ❌ (Modern Dash, Antfu)

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Example

// ❌ Deprecated approach
zipObject(['a', 'b'], [1, 2]);
// => { a: 1, b: 2 }

// ✅ Recommended approach
Object.fromEntries(['a', 'b'].map((k, i) => [k, [1, 2][i]]));
// => { a: 1, b: 2 }

// Or using zip from Arkhe
import { zip } from '@pithos/arkhe/array/zip';
Object.fromEntries(zip(['a', 'b'], [1, 2]));
// => { a: 1, b: 2 }

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How it works?

Creates an object from arrays of keys and values.

Processing Flow

Common Inputs

Keys	Values	Result
['a', 'b']	[1, 2]	{a: 1, b: 2}
['x', 'y', 'z']	[10, 20]	{x: 10, y: 20, z: undefined}

Deprecated: Use Object.fromEntries() with map() or zip().

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Use Cases

Create object from arrays 📌

Create an object from arrays of keys and values.

#zip#object#keys#values

const keys = ["a", "b", "c"];
const values = [1, 2, 3];
Object.fromEntries(keys.map((k, i) => [k, values[i]]));
// => { a: 1, b: 2, c: 3 }

Map fields to values

Build an object from parallel arrays.

#map#fields#values#form

const fields = ["name", "email", "age"];
const data = ["Alice", "alice@example.com", 30];
Object.fromEntries(fields.map((f, i) => [f, data[i]]));
// => { name: "Alice", email: "alice@example.com", age: 30 }

Combine headers with row

Create object from CSV header and data row.

#combine#headers#row#CSV

const headers = ["id", "title", "price"];
const row = [1, "Product", 99.99];
Object.fromEntries(headers.map((h, i) => [h, row[i]]));